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Cheesy French Onion Broccoli Casserole Recipe

Cheesy French Onion Broccoli Casserole Recipe


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4.9 from 8 reviews

  • Total Time: 40-45 minutes
  • Yield: 4 1x

Description

Creamy French Onion Broccoli Cheese Casserole brings comfort straight from the kitchen to your dinner table. Packed with caramelized onions, tender broccoli, and a rich cheese sauce, this casserole delivers pure satisfaction in one delightful dish.


Ingredients

Scale

Main Ingredients:

  • 4 cups broccoli florets
  • 1 cup shredded sharp cheddar cheese
  • 1 (10.5 oz) can condensed French onion soup

Supporting Ingredients:

  • ½ cup sour cream
  • 1 ½ cups crispy fried onions

Seasoning Ingredients:

  • 1 tablespoon all-purpose flour
  • ¼ teaspoon garlic powder
  • ¼ teaspoon black pepper
  • ½ teaspoon dried thyme
  • Pinch of salt

Instructions

  1. Warm your oven to precisely 350°F (175°C) and thoroughly coat a 9×13-inch baking dish with cooking spray or butter.
  2. Steam 4 cups of broccoli florets for 3-4 minutes until bright green and tender, then drain completely.
  3. Whisk 1 can (10.5 oz) condensed French onion soup with ½ cup sour cream in a large mixing bowl until smooth.
  4. Sprinkle ¼ teaspoon garlic powder, ¼ teaspoon black pepper, and a small pinch of salt into the soup mixture.
  5. Fold 1 cup shredded sharp cheddar cheese and 1 cup crispy fried onions into the creamy base until evenly distributed.
  6. Gently incorporate the steamed broccoli florets into the mixture, ensuring each piece gets coated.
  7. Transfer the entire mixture to your prepared baking dish, spreading it evenly with a spatula.
  8. Slide the casserole into the preheated oven and bake uncovered for exactly 20 minutes.
  9. Scatter the remaining ½ cup crispy fried onions across the top of the casserole.
  10. Return to the oven for an additional 5-7 minutes until the onions turn golden brown and the edges bubble.
  11. Remove from the oven and let the casserole rest for 5 minutes before serving to allow flavors to settle.

Notes

  • Steam broccoli just until bright green and crisp-tender to prevent mushiness in the final casserole.
  • Drain excess liquid from broccoli completely to keep the casserole from becoming watery and losing its creamy texture.
  • Use sharp cheddar cheese for maximum flavor depth, which helps enhance the French onion soup’s rich profile.
  • For a gluten-free version, swap regular flour with cornstarch or use a gluten-free all-purpose flour blend to maintain the casserole’s thickness.
  • Prep Time: 15 minutes
  • Cook Time: 25-30 minutes
  • Category: Casseroles
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 4
  • Calories: 237 kcal
  • Sugar: 3 g
  • Sodium: 670 mg
  • Fat: 15 g
  • Saturated Fat: 9 g
  • Unsaturated Fat: 5 g
  • Trans Fat: 0.2 g
  • Carbohydrates: 14 g
  • Fiber: 3 g
  • Protein: 11 g
  • Cholesterol: 40 mg