Squash Casserole Parmesan

Prep: 10 min Cook: 30 min Serves: 4 Cuisine: American

A savory squash casserole with Parmesan cheese, combining tender yellow squash and a creamy, cheesy topping, perfect for family dinners or holiday gatherings.

Be the first to rate this recipe

Ingredients

  • 5 medium yellow squash
  • 1 medium onion
  • 1/4 cup water
  • 2 teaspoons sugar
  • 3/4 teaspoon salt
  • 1 large egg, well beaten
  • 1/2 cup milk
  • 1/2 cup Parmesan cheese

Instructions

  1. Pour the mixture into a greased 2-quart casserole.
  2. Bake for 30 minutes at 350°F until set and lightly golden.

Tips & Substitutions

For a richer flavor, consider adding minced garlic or herbs like thyme or basil to the squash mixture. If you're short on Parmesan, you can substitute with a blend of mozzarella and cheddar for a different taste. To achieve a creamier texture, mix in a bit of cream cheese or sour cream. Make sure to slice the squash evenly for even cooking.

Serving Suggestions

This squash casserole pairs beautifully with grilled chicken or fish for a well-rounded meal. Serve alongside a fresh salad or some crusty bread for a delightful dinner. It’s also a great side dish for holiday gatherings or potlucks. For a vegetarian option, enjoy it with a hearty grain like quinoa or brown rice.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place the casserole in the oven at 350°F for about 15-20 minutes until warmed through. You can also microwave individual portions for about 2-3 minutes, but the oven method will keep the top crispier.

Nutrition & Diet Analysis (per serving)

Each serving of Squash Casserole Parmesan contains roughly 972 calories, with 17g protein, 134g carbohydrates, and 42g fat. It is an excellent source of calcium (40% of the Daily Value), protein (34% of the Daily Value), and iron (27% of the Daily Value), and a good source of potassium and vitamin C. Note that it is relatively high in sodium, at 2359mg per serving (103% of the Daily Value).

972 kcal 49% DV
Protein Fat Carbs

Macronutrients

Protein 16.9g 34% DV
Total Fat 41.9g 54% DV
Carbs 134.3g 49% DV
Fiber 1.3g 5% DV
Sugar 11.8g 24% DV

Electrolytes

Sodium 2359.1mg 100% DV
Potassium 893.7mg 19% DV
Cholesterol 417mg 100% DV

Vitamins & Minerals

Vitamin A 131.8mcg 15% DV
Vitamin C 13.5mg 15% DV
Vitamin D 0.4mcg 2% DV
Calcium 515.5mg 40% DV
Iron 4.9mg 27% DV
Contains Milk Egg

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 other types of squash for this recipe?

Yes, you can substitute zucchini or a mix of summer squashes for yellow squash. Each will offer a slightly different flavor and texture, but they will all work well in this casserole. Just make sure to adjust the cooking time if you use larger or denser varieties.

How can I make this dish gluten-free?

This recipe is naturally gluten-free as it doesn't require any flour. However, if you add breadcrumbs for a topping, ensure you use gluten-free breadcrumbs. You can also skip the breadcrumbs altogether for a lighter version while maintaining the same delicious flavor.

Can I prepare this casserole in advance?

Absolutely! You can prepare the squash mixture and place it in the casserole dish a day ahead. Just cover it tightly with plastic wrap and store it in the refrigerator. When you're ready to bake, remove it from the fridge and let it sit at room temperature for about 30 minutes before 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).

American recipes → Vegetarian recipes → Dairy recipes → All recipes →