Supreme Green Casserole

Prep: 15 min Cook: 30 min Serves: 12 Cuisine: American

A hearty green casserole packed with spinach, broccoli, and asparagus, topped with cheeses and crispy onions—perfect for family dinners or special occasions.

Be the first to rate this recipe

Ingredients

  • 1 pkg. frozen spinach
  • 1 pkg. broccoli spears
  • 1 pkg. asparagus spears
  • 2 cans French fried onion
  • 1 can cream of mushroom soup
  • 1 small can sliced mushrooms
  • 6 oz. Mozzarella cheese

Instructions

  1. Thaw and drain all vegetables.
  2. Layer the bottom of the casserole with 1/2 crushed French fried onions.
  3. Arrange the spinach on top, then add 1/2 can of cream of mushroom soup, 1/2 shredded Mozzarella cheese, and sliced mushrooms.
  4. Lay out asparagus spears, cut off tough ends, then top with remaining soup, Mozzarella, and mushrooms.
  5. Place broccoli spears on top, then sprinkle with remaining French fried onions, shredded Cheddar cheese, and sliced almonds.
  6. Cover and bake at 400°F for 30 minutes.
  7. Remove cover and broil to crispen the top, if desired, or keep covered for another 5 minutes at 400°F.

Tips & Substitutions

For added flavor, consider sautéing the spinach and mushrooms with garlic before layering them in the casserole. If you want a lighter option, you can substitute the cream of mushroom soup with a homemade white sauce or a vegetarian version. Feel free to mix in other vegetables you have on hand, like bell peppers or zucchini, to customize your casserole.

Serving Suggestions

This Supreme Green Casserole pairs beautifully with a side salad or crusty bread. For a complete meal, serve it alongside roasted chicken or grilled fish. If you're looking for a vegetarian option, you can enjoy it on its own or with a light quinoa salad. It also makes a great dish for potlucks or family gatherings.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to three days. To reheat, cover the casserole with foil and warm it in the oven at 350°F until heated through, about 20 minutes. Alternatively, you can microwave individual portions for a quick meal.

Nutrition & Diet Analysis (per serving)

Each serving of Supreme Green Casserole contains roughly 400 calories, with 15g protein, 29g carbohydrates, and 26g fat. It is an excellent source of vitamin D (45% of the Daily Value), protein (30% of the Daily Value), and calcium (24% of the Daily Value), and a good source of dietary fiber and vitamin A. Note that it is relatively high in sodium, at 472mg per serving (21% of the Daily Value).

400 kcal 20% DV
Protein Fat Carbs

Macronutrients

Protein 14.8g 30% DV
Total Fat 26.3g 34% DV
Carbs 29.2g 11% DV
Fiber 3.8g 14% DV
Sugar 5.4g 11% DV

Electrolytes

Sodium 472.2mg 21% DV
Potassium 364.5mg 8% DV
Cholesterol 27.3mg 9% DV

Vitamins & Minerals

Vitamin A 102mcg 11% DV
Vitamin C 4.2mg 5% DV
Vitamin D 8.9mcg 45% DV
Calcium 305.8mg 24% DV
Iron 1.7mg 9% DV
Contains Milk

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 fresh vegetables instead of frozen?

Yes, you can use fresh vegetables. Just make sure to blanch them briefly in boiling water before adding them to the casserole to ensure they are tender. Adjust the cooking time accordingly to ensure everything is cooked through.

Is it possible to make this casserole ahead of time?

Absolutely! You can assemble the casserole a day in advance and store it covered in the refrigerator. Just remember to add a few extra minutes to the baking time if you're cooking it straight from the fridge.

Can I substitute the cheese for a dairy-free option?

Yes, you can use a dairy-free mozzarella cheese or nutritional yeast for a cheesy flavor. Just be aware that the texture and flavor may vary slightly, but it will still be delicious and suitable for a vegan diet.

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 →