Zucchini-Custard Casserole

Prep: 15 min Cook: 40 min Serves: 6 Cuisine: American

A creamy zucchini casserole with melted cheeses and a crispy breadcrumb topping, perfect for a comforting family meal or side dish in any season.

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Ingredients

  • 2 lb. zucchini (about 4 cups), sliced
  • 2 Tbsp. minced onion
  • 1/4 cup melted butter
  • 3 eggs
  • 1/2 cup milk
  • 2/3 cup grated cheese
  • dash of pepper
  • 1/3 cup Parmesan cheese
  • 2 Tbsp. dry breadcrumbs
  • 3/4 tsp. salt

Instructions

  1. In a large skillet, sauté zucchini and minced onion in melted butter until tender.
  2. Set aside.
  3. In a large mixing bowl, beat eggs and milk.
  4. Add half of the grated cheese, half of the Parmesan cheese, breadcrumbs, salt, and pepper.
  5. Stir in the cooked zucchini and onion mixture.
  6. Turn the mixture into a buttered 1 1/2-quart casserole dish.
  7. Sprinkle the top with the remaining cheeses.
  8. Bake uncovered in a preheated 350°F oven for approximately 35 to 40 minutes, until lightly browned.
  9. Serve and enjoy.

Tips & Substitutions

To enhance the flavor, consider adding herbs like basil or thyme to the zucchini mixture. If you want a creamier texture, substitute heavy cream for the milk. For a lighter version, use low-fat cheese or omit the added cheese altogether. You can also replace zucchini with yellow squash for a slightly different taste.

Serving Suggestions

This casserole makes a delightful main dish or side. Pair it with a fresh garden salad and crusty bread for a complete meal. It also complements grilled meats or can be served alongside dishes like Dave'S Cake Or Red Velvet Cake for dessert, making it a versatile choice for gatherings.

Storage & Reheating

Store leftover Zucchini-Custard Casserole in an airtight container in the refrigerator for up to 3 days. To reheat, preheat your oven to 350°F and bake for about 15-20 minutes until warmed through. You can also microwave individual portions for quicker reheating.

Nutrition & Diet Analysis (per serving)

Each serving of Zucchini-Custard Casserole contains roughly 407 calories, with 13g protein, 44g carbohydrates, and 21g fat. It is an excellent source of vitamin C (140% of the Daily Value), protein (26% of the Daily Value), and dietary fiber (24% of the Daily Value), and a good source of calcium and iron. Note that it is relatively high in sodium, at 798mg per serving (35% of the Daily Value).

407 kcal 20% DV
Protein Fat Carbs

Macronutrients

Protein 13g 26% DV
Total Fat 20.6g 26% DV
Carbs 44.1g 16% DV
Fiber 6.8g 24% DV
Sugar 7.1g 14% DV

Electrolytes

Sodium 797.7mg 35% DV
Potassium 590.4mg 13% DV
Cholesterol 58.6mg 20% DV

Vitamins & Minerals

Vitamin A 46.3mcg 5% DV
Vitamin C 126.4mg 100% DV
Vitamin D 0mcg
Calcium 228.1mg 18% DV
Iron 2.9mg 16% 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 use frozen zucchini for this recipe?

While fresh zucchini is recommended for the best texture, you can use frozen zucchini if thawed and well-drained. Keep in mind that frozen zucchini may release more moisture, so you might need to adjust baking time.

What type of cheese works best in this casserole?

A combination of cheddar and Parmesan works wonderfully, but feel free to experiment with your favorites. Mozzarella or a tangy goat cheese can add a unique flavor. Just ensure it melts well for the best results.

Can I make this casserole ahead of time?

Yes, you can prepare the casserole a day in advance. Assemble it and cover it tightly with plastic wrap or foil. When ready to bake, remove the cover and bake directly from the refrigerator, adding a few extra minutes to the cooking time.

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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