The egg and sausage casserole keto version we’re making today is a baked breakfast that keeps net carbs low while staying filling. It uses bulk pork sausage, eggs, cheese, and a few vegetables so you get protein and fat without the bread or potato filler. You end up with a dish that slices cleanly, reheats well, and fits a ketogenic plan.
This recipe is built for a standard 9×13 inch baking dish and feeds four to six people depending on portion size. The texture is firm but moist, closer to a crustless quiche than a fluffy soufflé. If you track macros, one square lands near 3 grams of net carbs with roughly 22 grams of protein. Making this egg and sausage casserole keto at home is surprisingly straightforward once you know the key steps.
We’ll walk through the ingredients, substitutions, and the baking steps so the center sets without weeping. The egg and sausage casserole keto method below avoids the common rubbery edge problem by controlling oven temperature and resting time. If you enjoyed this, our soft mini egg is worth trying next.
Why You’ll Love These Egg And Sausage Casserole Keto
- Low net carbs at about 3 grams per serving with no grain base.
- High protein from eggs and pork sausage keeps you full past mid-morning.
- Make-ahead friendly since it holds in the fridge up to four days.
- One dish to clean because the sausage browns in the same pan you bake in.
- Flexible with cheese and low-carb vegetables you already have.
Ingredients You’ll Need
- 1 pound bulk pork sausage (no sugar added) – browning this first renders fat and builds the base flavor.
- 10 large eggs – the structure and main protein of the bake.
- 1 cup shredded cheddar cheese – adds fat and a golden top.
- 1/2 cup heavy cream – keeps the custard from turning tough.
- 1 cup chopped zucchini (about 1 small) – low-carb moisture and bulk.
- 1/4 cup diced red onion – mild sharpness without high carbs.
- 1/2 teaspoon salt – balances the sausage and eggs.
- 1/4 teaspoon black pepper – light spice.
- 1/2 teaspoon garlic powder – even savory note through the custard.
Ingredient Substitutions
Bulk pork sausage: Replace with an equal weight of ground turkey mixed with 1 tablespoon olive oil per pound if you want a lighter meat. Turkey is leaner so the casserole will be drier unless you add the oil or an extra 2 tablespoons of heavy cream. Expect a milder flavor and less browning on the edges since pork fat drives the crisp top. The egg and sausage casserole keto works well for weeknight cooking when time is limited.
Heavy cream: Use an equal volume of full-fat coconut milk for a dairy-free version. Coconut milk loosens the custard slightly and adds a faint sweet note that pairs oddly with cheddar, so switch to a milder cheese like Monterey Jack. The bake time stays the same but the top will brown less.
Zucchini: Swap for an equal weight of chopped spinach that you squeeze dry first. Spinach drops the moisture content and gives a softer bite with no chunks. You’ll lose the light vegetable texture but net carbs go down by about 1 gram per serving.
Cheddar cheese: Substitute an equal amount of shredded Swiss for a nuttier profile. Swiss melts slower so keep the oven at the same heat but add 3 minutes to the covered stage. The top will be less orange and more pale gold. For another easy option, check out our no egg cornbread.
Step-by-Step Instructions
- Heat a 12-inch skillet on medium heat and add the pork sausage. Break it into small pieces and cook 8 minutes until no pink remains and the edges are golden and crispy. Spoon out excess grease leaving 1 tablespoon in the pan.
- Stir the red onion and zucchini into the hot skillet with the sausage. Cook 4 minutes on medium-low heat until the zucchini softens and the onion turns translucent. Spread this mixture evenly in a greased 9×13 inch baking dish.
- In a bowl whisk the 10 eggs, heavy cream, salt, pepper, and garlic powder for 30 seconds until uniform. Pour the mix over the sausage and vegetables so it reaches all corners of the dish.
- Sprinkle the shredded cheddar across the top in an even layer. Tap the dish on the counter twice to release air pockets trapped under the custard.
- Bake at 180°C / 350°F for 25–30 minutes until the center reaches just set edges and a knife inserted comes out clean. Cool on a rack 10 minutes before slicing so the squares hold shape.
Pro Tips
Brown the sausage well before baking because the oven won’t crisp it further once submerged in egg. A maillard reaction on the meat gives the whole casserole a deeper savory base.
Grease the baking dish with butter not spray if you want cleaner release and a faintly richer edge. The milk solids in butter help the custard pull away instead of sticking.
Whisk the eggs and cream just until blended and do not overmix or you’ll fold in air that bubbles and craters the top while baking.
Rest the baked casserole 10 minutes before cutting so the proteins tighten and you get neat squares instead of a spoonable mess.
Common Mistakes to Avoid
Using pre-shredded cheese with starch coatings can make the top gummy because the anti-caking powder thickens the custard surface. Grate your own block to keep the melt clean.
Skipping the vegetable sauté step leaves raw zucchini water in the dish that steams the eggs into a spongy layer. Always soften low-carb veg first.
Opening the oven before 20 minutes drops the temperature and can sink the center. avoid opening the oven early unless the top is already deep brown. You might also like our pepper egg sandwich.
Serving Suggestions
Cut the cooled bake into six squares and plate with a side of sausage and peppers for a fuller brunch. The extra vegetables keep the plate low carb but add color.
A few sliced avocados on the side bring healthy fat and a cool contrast to the warm custard. You can also add a dash of hot sauce without changing the macros much.
For a coffee-shop style plate, pair a square with a cup of black coffee and skip the juice. The egg and sausage casserole keto format stays under 5 net carbs even with the avocado.
Storage and Reheating
Place leftovers in an airtight container and refrigerate for up to 4 days. Cooked egg and meat dishes like this should not sit out more than 2 hours before chilling.
To reheat, warm a square in a 175°C / 350°F oven for 12 minutes until the internal temperature hits 74°C / 165°F. Microwave works but gives a softer edge, so use 60 seconds per square on medium power.
This bake freezes for up to 2 months if wrapped tight. Thaw overnight in the fridge then reheat from the refrigerated directions above. Pair this with our roasted broccolini sausage for more ideas.
Recipe Variations
Spicy Version
Add 1 teaspoon crushed red pepper to the sausage while browning and use pepper jack instead of cheddar. The heat builds through the custard and the top gets a faint orange tint from the cheese.
Extra Vegetable
Fold in 1 cup chopped broccoli florets with the zucchini during the sauté step. Broccoli adds crunch and bumps the fiber so net carbs stay near 4 grams per serving.
Cheese Swap
Use 1 cup crumbled feta in place of half the cheddar for a salty Greek edge. Feta won’t melt smooth so expect white pockets rather than a uniform top.
Make-Ahead Night
Assemble the dish through step 4 then cover and refrigerate up to 12 hours before baking. Pull it out 20 minutes early so the cold glass doesn’t shock the oven and add 5 minutes to bake time. Looking for something similar? Our image is a great pick.
Egg And Sausage Casserole Keto
Description
This egg and sausage casserole keto version is a baked breakfast that keeps net carbs low while staying filling with pork sausage, eggs, cheese, and low-carb vegetables. It slices cleanly, reheats well, and fits a ketogenic plan with roughly 3 grams of net carbs per serving.
Ingredients
Instructions
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Brown the sausage
Heat a 12-inch skillet on medium heat and add the pork sausage. Break it into small pieces and cook for 8 minutes until no pink remains, the edges are golden and crispy, and the internal temperature reaches 71°C / 160°F for ground meat safety.
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Remove excess grease
Spoon out excess grease from the skillet, leaving 1 tablespoon in the pan for sautéing. This reserved fat builds flavor and prevents the vegetable step from sticking.
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Sauté vegetables
Stir the 1/4 cup diced red onion and 1 cup chopped zucchini into the hot skillet with the sausage. Cook for 4 minutes on medium-low heat until the zucchini softens and the onion turns translucent, which removes raw water that would steam the eggs.
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Spread in baking dish
Spread the sausage and vegetable mixture evenly in a greased 9x13 inch baking dish. Make sure the layer is flat so the custard bakes uniformly across the pan.
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Whisk egg custard
In a bowl whisk the 10 eggs, 1/2 cup heavy cream, 1/2 teaspoon salt, 1/4 teaspoon black pepper, and 1/2 teaspoon garlic powder for 30 seconds until uniform. Do not overmix or you will fold in air that bubbles and craters the top while baking.
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Pour and top
Pour the egg mixture over the sausage and vegetables so it reaches all corners of the dish. Sprinkle the 1 cup shredded cheddar across the top in an even layer, then tap the dish on the counter twice to release air pockets trapped under the custard.
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Bake the casserole
Bake at 180°C / 350°F for 25–30 minutes until the center is just set and a knife inserted comes out clean, reaching an internal temperature of 71°C / 160°F for egg dishes. Avoid opening the oven before 20 minutes so the center does not sink.
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Cool before slicing
Cool the casserole on a rack for 10 minutes before slicing so the proteins tighten and squares hold shape. The rested bake gives neat portions instead of a spoonable mess.
Nutrition Facts
Servings 6
- Amount Per Serving
- Calories 350kcal
- % Daily Value *
- Total Fat 28g44%
- Saturated Fat 12g60%
- Cholesterol 320mg107%
- Sodium 620mg26%
- Total Carbohydrate 5g2%
- Dietary Fiber 1g4%
- Sugars 2g
- Protein 22g44%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.
Note
- Storage: Place leftovers in an airtight container and refrigerate within 2 hours of cooking for up to 4 days; reheat to 74°C / 165°F internal.
- Make ahead: Assemble through step 4 then cover and refrigerate up to 12 hours before baking, adding 5 minutes to bake time.
- Pro tip: Grease the dish with butter not spray for cleaner release, and pair a square with sausage and peppers for a fuller brunch.
- Reheating: Warm a square in a 175°C / 350°F oven for 12 minutes; microwave on medium 60 seconds but expect a softer edge.
