Introduction

This French Onion Broccoli Cheese Casserole is a comforting, cheesy side dish perfect for any occasion. Combining tender broccoli with creamy French onion dip and crispy fried onions creates a delightful mix of textures and flavors that everyone will love.

A close-up of a wooden spoon lifting a scoop of cheesy broccoli casserole, showing three clear layers: bright green broccoli florets at the bottom, a thick, creamy light orange cheese sauce in the middle, and a crunchy layer of golden-brown fried onions on top; the background has a white marbled texture with more casserole blurred, highlighting the gooey, textured mix. photo taken with an iphone --ar 4:5 --v 7

Ingredients

1 lb broccoli florets, chopped
1 (10.5-oz) can unsalted cream of mushroom soup
1 cup refrigerated sour cream based French onion dip
1½ cups shredded cheddar cheese
1 (6-oz) container French fried onions

Instructions

Step 1: Preheat oven to 350ºF. Lightly spray a 9×9-inch baking dish with cooking spray.
Step 2: In a large bowl, combine chopped broccoli, cream of mushroom soup, French onion dip, 1 cup shredded cheddar cheese, and half of the French fried onions. Mix well.
Step 3: Spread the broccoli mixture evenly into the prepared baking dish.
Step 4: Bake for 25 minutes. Remove from oven, sprinkle the remaining cheddar cheese and French fried onions on top, then bake for an additional 5 minutes until the cheese is melted and onions are crispy.

Tips & Variations

For extra flavor, add a teaspoon of garlic powder or fresh minced garlic to the broccoli mixture before baking.
Substitute the cream of mushroom soup with cream of chicken soup if preferred.
Use a mix of cheddar and mozzarella cheese for a creamier texture and milder taste.
Add cooked bacon bits to the casserole for a smoky twist.

Storage

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or oven until warmed through, adding a few extra minutes if needed to restore crispiness on top.

How to Serve

A close-up view of a white ceramic dish filled with a layered broccoli casserole. The base layer consists of fresh green broccoli florets, mixed with a creamy cheesy sauce in light beige. Above this, there are bright yellow melted cheese pieces scattered evenly. The top layer shows crispy golden-brown fried onion strings spread across the surface, adding a crunchy texture. A wooden spoon lifts a creamy serving from the dish, showing all layers combined. The dish is set against a white marbled background. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use fresh broccoli instead of frozen?

Yes, fresh broccoli works well. Just ensure it is chopped into small florets for even cooking. You may want to lightly steam or blanch it first so the casserole bakes evenly.

Is this casserole freezer-friendly?

This casserole can be frozen before baking. Cover tightly with foil and freeze for up to 2 months. Thaw overnight in the refrigerator before baking as directed.

French Onion Broccoli Cheese Casserole Recipe

Print Recipe

★★★★★

4.8 from 101 reviews

A comforting and cheesy casserole featuring tender broccoli florets mixed with creamy French onion dip and mushroom soup, topped with crispy French fried onions and melted cheddar cheese. Perfect as a delicious side dish or a hearty vegetarian entrée.

Author: Maya
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Yield: 6 servings 1x
Category: Casserole
Method: Baking
Cuisine: American
Diet: Vegetarian

Ingredients

Scale

Main Ingredients

1 lb broccoli florets, chopped
1 (10.5-oz) can unsalted cream of mushroom soup
1 cup refrigerated sour cream-based French onion dip
1½ cups shredded cheddar cheese
1 (6-oz) container French fried onions

Instructions

Preheat oven and prepare dish: Preheat your oven to 350ºF (175ºC) and lightly spray a 9×9-inch baking dish with cooking spray to prevent sticking and ensure easy cleanup.
Mix the casserole ingredients: In a large bowl, combine the chopped broccoli florets, cream of mushroom soup, French onion dip, 1 cup of shredded cheddar cheese, and half of the French fried onions. Stir everything together until evenly mixed and well coated.
Assemble the casserole: Spread the broccoli mixture evenly into the prepared baking dish, spreading it out to create an even layer for consistent cooking.
Bake the casserole: Bake in the preheated oven for 25 minutes, allowing the flavors to meld and the broccoli to soften slightly.
Add toppings and finish baking: Remove the casserole from the oven and sprinkle the remaining ½ cup of shredded cheddar cheese and the rest of the French fried onions over the top. Return to the oven and bake for an additional 5 minutes, or until the cheese is melted and bubbly and the onions are golden and crispy.

Notes

For a lower sodium version, opt for low-sodium cream of mushroom soup and reduced-sodium French fried onions.
To add protein, consider mixing in cooked chicken or turkey.
Fresh broccoli can be lightly steamed before combining if you prefer a softer texture.
This casserole is best enjoyed warm and can be reheated in the oven or microwave.
Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.

Keywords: broccoli casserole, French onion casserole, cheesy broccoli bake, vegetable casserole, comfort food, vegetarian casserole