Broccoli Onion Casserole

Prep: 10 min Cook: 18 min Serves: 4 Cuisine: American

A comforting broccoli onion casserole packed with savory mushroom flavor and melted Cheddar cheese. Perfect as a side dish for family dinners or potlucks, this easy-to-make casserole combines tender broccoli, sweet pearl onions, and crunchy cracker topping for a satisfying meal.

Be the first to rate this recipe

Ingredients

  • 2 (10 oz.) pkg. frozen broccoli cuts
  • 1 (8 oz.) can pearl onions, drained
  • 1/4 cup cracker crumbs
  • 2 Tbsp. water
  • 1 can cream of mushroom soup
  • 1/2 cup shredded Cheddar cheese

Instructions

  1. Place the frozen broccoli and water in a casserole dish.
  2. Microwave on High for 10 minutes; drain.
  3. Stir to break up the broccoli.
  4. Stir in the drained pearl onions and cream of mushroom soup.
  5. Top with cracker crumbs.
  6. Microwave on High for 7 minutes.
  7. Sprinkle with shredded Cheddar cheese.
  8. Microwave for 1 minute on High until the cheese is melted.

Tips & Substitutions

For a richer flavor, consider adding a pinch of garlic powder or substituting the cream of mushroom soup with a homemade version. If you prefer a different cheese, Gruyère or mozzarella can also work well. To enhance the nutritional profile, toss in some cooked quinoa or brown rice before microwaving. This dish is an excellent vegetarian option and can complement other American recipes.

Serving Suggestions

This broccoli onion casserole pairs beautifully with roasted chicken or grilled fish for a wholesome meal. Serve it alongside a fresh salad or some crusty bread to round out the dinner. For a comforting side dish, consider serving it with a light soup or your favorite Hot Broccoli Dip(Microwave).

Storage & Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, simply microwave for 1-2 minutes or until heated through, stirring halfway to ensure even warming. If you prefer a crispy top, you can also reheat it in the oven at 350°F for about 10-15 minutes.

Nutrition & Diet Analysis (per serving)

Each serving of Broccoli Onion Casserole contains roughly 304 calories, with 14g protein, 8g carbohydrates, and 24g fat. It is an excellent source of calcium (33% of the Daily Value), protein (29% of the Daily Value), and vitamin A (22% of the Daily Value).

304 kcal 15% DV
Protein Fat Carbs

Macronutrients

Protein 14.4g 29% DV
Total Fat 24.1g 31% DV
Carbs 8.3g 3% DV
Fiber 0.3g 1% DV
Sugar 2.7g 5% DV

Electrolytes

Sodium 398.9mg 17% DV
Potassium 101.2mg 2% DV
Cholesterol 57.6mg 19% DV

Vitamins & Minerals

Vitamin A 201mcg 22% DV
Vitamin C 0.6mg 1% DV
Vitamin D 0.3mcg 2% DV
Calcium 431mg 33% DV
Iron 0.4mg 2% DV
Diet fit Keto-friendly Under 400 cal
Contains Milk 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 fresh broccoli instead of frozen?

Yes, fresh broccoli can be used instead of frozen. Just blanch it in boiling water for a couple of minutes before adding it to the casserole dish. This will help soften the broccoli and ensure it cooks evenly in the microwave.

Is it possible to make this dish ahead of time?

Absolutely! You can prepare the casserole up to the point of microwaving and cover it tightly with plastic wrap. Store it in the refrigerator for up to 24 hours, then microwave it when you're ready to serve. Just add an extra minute or two to the cooking time.

What can I substitute for cream of mushroom soup?

If you need a substitute for cream of mushroom soup, you can use cream of chicken soup or a homemade creamy sauce made with milk, flour, and sautéed mushrooms. This will maintain the creamy texture while adding a different flavor profile.

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 →