Low-carb sausage and zucchini casserole

This low-carb sausage and zucchini casserole combines tender zucchini, Vienna sausages, and melted cheddar in a creamy base, perfect for low-carb diets. It's easy to make and ideal for family meals or meal prep.

27 Dec 2025
Cook time 40 min
Prep time 5 min

Ingredients:

3 zucchini
16 oz vienna sausage
1 cup mayonnaise salad dressing
1/2 tsp onion powder
2 eggs
1 tsp salt
1/4 tsp black pepper
1/4 cup butter
1.50 cup cheddar cheese
Low-carb sausage and zucchini casserole

This low-carb sausage and zucchini casserole is a delicious and easy-to-make dish that's perfect for those following a low-carb or keto diet. It's packed with flavor, thanks to the combination of Vienna sausages, zucchini, and melted cheddar cheese all brought together in a creamy base. Whether you're making it for a family dinner or meal prepping for the week, this casserole is sure to satisfy your cravings without the extra carbs.

Instructions:

1. Preheat the Oven:
Preheat your oven to 350°F (175°C).
2. Prepare the Zucchini:
Wash and slice the zucchini into approximately 1/4-inch thick rounds. Set aside.
3. Cook the Zucchini:
In a large skillet, melt the butter over medium heat. Add the sliced zucchini and cook, stirring occasionally, until it becomes slightly tender but not fully cooked (about 5-7 minutes). Remove from heat and set aside.
4. Prepare the Mixture:
In a large mixing bowl, combine the mayonnaise salad dressing, beaten eggs, onion powder, salt, and black pepper. Stir until well combined.
5. Add Sausage and Zucchini:
Add the sliced Vienna sausage and cooked zucchini into the bowl with the mayonnaise mixture. Gently fold the ingredients together until they are evenly coated.
6. Assemble the Casserole:
Pour the mixture into a greased 9x13-inch baking dish. Spread it out evenly.
7. Add the Cheese:
Sprinkle the shredded cheddar cheese evenly over the top of the casserole.
8. Bake:
Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the cheese is melted and bubbly and the casserole is heated through.
9. Serve:
Remove the casserole from the oven and let it cool for a few minutes before serving. Enjoy your delicious low-carb sausage and zucchini casserole!

Enjoy this hearty and comforting low-carb sausage and zucchini casserole fresh out of the oven. It's a simple, yet flavorful dish that delivers on both taste and nutrition. Pair it with a fresh salad to complete your meal, or simply savor it on its own. Leftovers can be stored in the fridge and reheated for a quick and delicious meal anytime.

Low-carb sausage and zucchini casserole FAQ:

What should I do if my casserole isn't bubbling after 30 minutes?

If your casserole isn't bubbling after 30 minutes, you can extend the baking time in 5-minute increments until the cheese is melted and bubbly. Ensure your oven is properly preheated and that the dish is in the center of the oven for even cooking.

Can I use different types of sausage in this casserole?

Yes, you can substitute Vienna sausage with other cooked sausages like kielbasa, Italian sausage, or turkey sausage. Ensure the sausage is pre-cooked or adjust cooking times accordingly.

How do I store leftovers of this casserole?

Store leftovers in an airtight container in the refrigerator for up to 3-4 days. You can also freeze the casserole for up to 2 months; however, the texture may change slightly upon reheating.

What can I substitute for mayonnaise salad dressing?

You can substitute mayonnaise salad dressing with regular mayonnaise or a low-carb yogurt-based dressing. Adjust the seasoning as needed since the flavors may differ.

What size baking dish do I need for this casserole?

You will need a 9x13-inch baking dish for this recipe. If you use a different size, you may need to adjust the cooking time.

Tips:

- Choose Fresh Zucchini: Opt for zucchini that are firm and free from blemishes to ensure the best texture and flavor in your casserole.

- Drain the Sausage: If using canned Vienna sausages, be sure to drain them well to prevent excess moisture in your casserole.

- Cheese Variations: Feel free to experiment with different cheeses such as mozzarella or Monterey Jack for a slightly different flavor profile.

- Bake Until Golden: Make sure to bake the casserole until the top is golden brown and bubbling for the best texture and taste.

- Serve Hot: This casserole is best enjoyed hot, so serve it straight from the oven for maximum flavor.

Nutrition per serving

6 Servings
Calories 500kcal
Protein 18g
Carbohydrates 12g
Fiber 1.00g
Sugar 7g
Fat 44g

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