November 16, 2023
Review RecipeVegetable Casserole Recipe

Table of Contents
My grandma’s vegetable casserole recipe is one of the best casseroles in her recipe box. This family favorite is loaded with a medley of vegetables, smothered in a cheesy and creamy sauce, and topped with a satisfying breadcrumb crunch.

Vegetable Casserole Ingredients
You’ll need:
- 1 large onion
- 1 cup Oleo (margarine) or butter, divided in half
- 1 can of cream of mushroom soup
- 1 jar of Cheez Whiz
- 1 cup of Minute Rice
- 1 (12-ounce) package of frozen California blend vegetables (broccoli and cauliflower)
- 1 cup of breadcrumbs
Substitutions And Additions
VEGETABLES: I always like to add a little bit of creativity and make this veggie casserole a little different every time.
You can replace the California blend frozen vegetables with your favorite vegetable mixture or even any leftover veggies from your fridge.
MEAT: Add protein to your delicious casserole by adding chunks of leftover chicken breast.
BREADCRUMBS: I have various herb breadcrumb mixes I like to rotate through when I’m making this casserole.
Rosemary, basil, thyme, and parsley are all great choices. I’ve also tossed in French-fried crispy onions on top of this comforting side dish.
CHEESE: Cheese is also a top choice to take this dish to the next level. Shredded cheddar cheese or parmesan cheese works wonders for adding flavor to the casserole crust.
TOPPINGS: With your scoops of creamy casserole, toppings and garnishes really add an extra flair.
I serve mine sometimes with extra French fried onions, bacon bits, sesame seeds, chopped green onions, or just more shredded cheese sprinkled on top.
HERBS: Herbs like fresh thyme or rosemary will elevate your casserole with an added aroma.
How To Make This Vegetable Casserole Recipe
OUR RECIPE DEVELOPER SAYS
This casserole can easily be assembled ahead of time and kept in the fridge covered in aluminum foil. Pop it in the oven just before your meal.
STEP ONE: Preheat the oven to 350°F. Grease a 9×13 casserole dish with non-stick cooking spray.
STEP TWO: Dice the onion and saute it in a large skillet with ½ cup of Oleo until translucent, then add the other ingredients, except the breadcrumbs, and stir well.

STEP THREE: Add the mixture to a greased casserole dish, sprinkle with breadcrumbs and dot evenly with the remaining Oleo.

STEP FOUR: Bake in the preheated oven for 20 to 30 minutes until bubbly and the breadcrumbs are browned.
PRO TIP:
Oven temperatures vary and may need to be recalibrated periodically to ensure they are accurate. Make sure to check your casserole at the lower end of the recommended baking time.

How To Serve
Served this mixed vegetable casserole alongside a juicy chicken or easy meatloaf, this vegetable casserole is simply the star side dish.
Add these fluffy dinner rolls on the side for a weeknight option.
Bring it, along with green bean casserole, chicken and rice casserole, or cowboy casserole, to potlucks.
MORE CASSEROLE RECIPES
Storage
IN THE FRIDGE: Store this delicious dish in the fridge in an airtight container for up to three days.
IN THE FREEZER: Freeze this veggie casserole recipe for up to three months. Thaw in the refrigerator overnight before heating.

This easy cheesy vegetable casserole recipe allows you to customize your veggie options and makes a great addition to any potluck or meal. Even your pickiest kids will gobble up this dish because a cheesy sauce makes everything taste better.
Frequently Asked Questions
For best results, use a 9×13 baking dish for this recipe.
This easy recipe can be made in advance and frozen until you are ready to serve. Thaw in the refrigerator overnight and bake according to the above directions.
Any mixed vegetables will be the perfect addition to this yummy side dish.
Fresh or frozen vegetables can both be added to this tasty casserole.
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Vegetable Casserole Recipe
Ingredients
- 1 large onion
- 1 cup Oleo (margarine), or butter, divided in half
- 1 can cream of mushroom soup
- 1 jar Cheez Whiz
- 1 cup Minute Rice
- 1 (12-ounce) package frozen California blend vegetables (broccoli and cauliflower)
- 1 cup breadcrumbs
Instructions
- Preheat the oven to 350°F. Grease a 9×13 casserole dish with non-stick cooking spray.
- Dice the onion and saute it in a large skillet with ½ cup of Oleo until translucent, then add the other ingredients, except the breadcrumbs, and stir well.
- Add the mixture to a greased casserole dish, sprinkle with breadcrumbs and dot evenly with the remaining Oleo.
- Bake in the preheated oven for 20 to 30 minutes until bubbly and the breadcrumbs are browned.
Video
Notes
- This casserole can easily be assembled ahead of time and kept in the fridge covered in aluminum foil. Pop it in the oven just before your meal.
- Oven temperatures vary and may need to be recalibrated periodically to ensure they are accurate. Make sure to check your casserole at the lower end of the recommended baking time.
Comments
Layne Henderson says
We absolutely love this delicious recipe – it’s the perfect side dish!
Treena says
Always love a casserole I can serve to the kids and sneak in extra veggies! Thanks for sharing!
stacy says
what if you don’t have cheeze whiz? Can you sub real cheese?
Layne Kangas says
Hi, Stacy – you can use a store-brand cheese sauce but it’s important to use a cheese sauce for this recipe like Cheez Whiz as regular cheese will not work.
Gail Guest says
Excellent site and great recipes
Thanks Gail