Zucchini Sausage Casserole

Prep: 15 min Cook: 60 min Serves: 6 Cuisine: American

A hearty zucchini and sausage casserole with cheesy, garlicky flavors, perfect for family dinners or casual gatherings, combining tender vegetables and savory sausage.

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Ingredients

  • 2 to 3 lb. zucchini
  • 1 lb. sausage (hot or mild)
  • 3 slices bread
  • 2 eggs
  • garlic powder
  • 1/2 onion, finely minced
  • pinch of oregano
  • 1/2 stick butter
  • 2 cups Parmesan cheese
  • salt and pepper

Instructions

  1. Cook zucchini until tender, then mash lightly.
  2. Brown the sausage in a skillet.
  3. Add finely minced onion, garlic powder, oregano, salt, and pepper to the sausage and cook until fragrant.
  4. Cut bread slices into small pieces and add to the cooked sausage mixture.
  5. Mix in melted butter, beaten eggs, 1 cup Parmesan cheese, and seasonings.
  6. Pour the mixture into a greased casserole dish.
  7. Top with bread crumbs and 1 cup Parmesan cheese.
  8. Bake at 350°F for about 1 hour until brown and set.

Tips & Substitutions

For a lighter version, consider substituting ground turkey or chicken sausage for the pork sausage. If you're short on time, use pre-cooked sausage or even shredded rotisserie chicken. Adding chopped bell peppers or spinach can also enhance the flavor and nutrition. Make sure to squeeze out excess moisture from the zucchini to avoid a watery casserole, similar to tips for making Au Gratin Potatoes Casserole.

Serving Suggestions

This casserole is hearty enough to serve as a standalone dish, but pairs beautifully with a crisp side salad or roasted vegetables. For a complete meal, consider serving it alongside a light soup or bread. It also complements dishes like Rice And Chili for a family-style dinner, making it a versatile choice for gatherings.

Storage & Reheating

Allow the casserole to cool to room temperature before storing. Cover it tightly with plastic wrap or aluminum foil, or transfer leftovers to an airtight container. It can be kept in the refrigerator for up to 3 days. To reheat, place it in a preheated oven at 350°F for about 20-25 minutes until heated through. You can also microwave individual portions for quicker reheating.

Nutrition & Diet Analysis (per serving)

Each serving of Zucchini Sausage Casserole contains roughly 533 calories, with 15g protein, 91g carbohydrates, and 20g fat. It is an excellent source of iron (165% of the Daily Value), dietary fiber (120% of the Daily Value), and calcium (103% of the Daily Value), and a good source of vitamin C and vitamin A. Note that it is relatively high in sodium, at 661mg per serving (29% of the Daily Value).

533 kcal 27% DV
Protein Fat Carbs

Macronutrients

Protein 15g 30% DV
Total Fat 19.6g 25% DV
Carbs 91.3g 33% DV
Fiber 33.5g 100% DV
Sugar 5.6g 11% DV

Electrolytes

Sodium 661.5mg 29% DV
Potassium 1345.5mg 29% DV
Cholesterol 77.4mg 26% DV

Vitamins & Minerals

Vitamin A 120.7mcg 13% DV
Vitamin C 16.7mg 19% DV
Vitamin D 0mcg
Calcium 1338.6mg 100% DV
Iron 29.6mg 100% DV
Diet fit High-fiber
Contains Milk Egg Wheat/Gluten

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I make this casserole ahead of time?

Yes, you can prepare the casserole a day in advance. Simply assemble it, cover it tightly, and refrigerate. When ready to bake, let it sit at room temperature for about 30 minutes before placing it in the oven. This allows for even cooking and helps prevent a cold center.

What can I use instead of Parmesan cheese?

If you need a substitute for Parmesan, try using Pecorino Romano for a sharper flavor or a dairy-free cheese alternative for a lactose-free option. Nutritional yeast can also provide a cheesy flavor for vegan diets, making this dish adaptable to various dietary preferences.

How do I know when the casserole is done?

The casserole is done when it is golden brown on top and has set in the center. You can check by inserting a knife into the middle; it should come out clean. If the top is browning too quickly, lightly cover it with foil during the last part of baking.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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