Cheesy Vegetable Casserole – Perfect Side Dish for Holiday Dinner!

If you’re looking for a great side dish for any meal, you’ll love this super easy cheesy Vegetable Casserole recipe!

This casserole is packed full of our favorite veggies in a shortcut cheesy sauce, perfect for hungry days and holiday meals!

a spoon in a cheesy vegetable casserole

We are excited to partner with Ibotta to bring you this easy cheesy recipe.

Easy & Cheesy

  • Frozen veggies make the prep time quick and easy (no washing or cutting required)
  • A can of creamy soup and lots of cheese make for an easy (and yummy) sauce
  • French fried onions add all of the flavor (and a crunchy topping) with no chopping/frying onions
  • This recipe is versatile, add in your own favorite veggies or even leftovers!

Holiday Savings

The holidays are a busy time and it seems we are always at the grocery store grabbing something or other! Did you know you can earn cash back on your groceries and more (things you were going to buy anyhow)?

That’s right, with Ibotta you can earn cash for your holiday groceries!

ingredients to make Cheesy Vegetable Casserole and Thanksgiving dinner

And even better, starting in November, Ibotta is giving away FREE Thanksgiving dinners (while supplies last) to American families. If you use the Ibotta App (or the new browser extension for online grocery pick-up and delivery orders) you will receive 100% cash back on everything needed to prepare a Thanksgiving meal for a family of 5! All offers are available starting in November, while supplies last. Check your app for details.

Ibotta is easy to use, simply download the app (or use the browser extension) and shop participating stores through the app or online. You’ll immediately get cash back, no coupons required and no points to collect!

ingredients to make Cheesy Vegetable Casserole on a wooden board


This easy recipe comes together with just a few ingredients!

VEGGIES Use frozen (or canned) veggies for ease. Broccoli, cauliflower, and green beans are called for in this dish. If you have fresh veggies, they can be steamed and added.

CHEESE Cheddar is our choice since the flavor blends so well with the ingredients, but it’s ok to use another variety if that’s what is in the fridge. Combined with condensed mushroom soup, it makes for the perfect sauce!

TOPPING French’s Crispy Fried Onions is the way to go for topping and, of course, cheese. These are the same onions I use to top our fave green bean casserole with and everyone loves them!

preparing a vegetable casserole in a bowl

How to Make Cheesy Vegetable Casserole

Cheesy vegetable casserole takes no effort to put together, and it’s done in no time!

  1. Cook veggies.
  2. Mix veggies, soup, milk/water, cheese, and half of the crispy onions.
  3. Pour the mixture into a prepared casserole dish and add the remaining cheddar cheese on top.
  4. Bake according to the recipe, then top with the remaining crispy onions. Bake another 10 minutes or until the topping is crispy and browned.

PRO TIP: For a super crispy top, place the casserole under the broiler for about 3 minutes until the topping is golden brown and the cheese is bubbly.

a dish filled with a veggie casserole

This casserole is a make-ahead dream! Prep, cover, and refrigerate up to 24 hours in advance! To reheat, pop a serving or two into the microwave!

Fave Holiday Sides

Did your family love this Cheesy Vegetable Casserole? Be sure to leave a rating and a comment below! 

Cheesy Vegetable Casserole

Full of veggies, cheddar cheese, and creamy soup, this Cheesy Vegetable Casserole is sure to be a family favorite!

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  • Preheat oven to 350°F.

  • Cook green beans and broccoli and cauliflower until tender crisp, per package directions.

  • In a medium sized bowl, mix green beans, broccoli and cauliflower, soup, milk, 1 ½ cups cheese, and half of the crispy onions. Pour into a casserole dish. Sprinkle remaining cheese on top.

  • Bake for 30 minutes. Top with remaining crispy onions and bake an additional 10 minutes.

Calories: 513, Carbohydrates: 29g, Protein: 21g, Fat: 35g, Saturated Fat: 19g, Cholesterol: 64mg, Sodium: 1164mg, Potassium: 413mg, Fiber: 4g, Sugar: 3g, Vitamin A: 3865IU, Vitamin C: 13mg, Calcium: 464mg, Iron: 2mg

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I am excited to have partnered with Ibotta to bring you this easy side dish. While I was compensated for this post, all thoughts and opinions are my own. Working with great brands I love allows me to keep bringing you the great recipes you love!

ingredients to make Cheesy Vegetable Casserole with finished dish and writing
top view of Cheesy Vegetable Casserole with writing
Cheesy Vegetable Casserole with a spoon and writing
close up of Cheesy Vegetable Casserole with a title