Easy Mixed Vegetable Casserole Recipe: Quick, Creamy, and Delicious

Easy Mixed Vegetable Casserole is my secret weapon for busy weeknight dinners. With just 15 minutes of prep and 30 minutes in the oven, this recipe delivers creamy, cheesy goodness that tastes like you spent hours in the kitchen. It’s perfect for those nights when you want something comforting but don’t have time to fuss over a complicated meal.

I stumbled on this shortcut while trying to whip up a healthy vegetable casserole recipe that didn’t require chopping half the farmer’s market. Spoiler alert: canned mixed vegetables save the day (and loads of time). Add a creamy sauce, a crispy cracker topping, and bake to perfection in just one dish. Trust me, your oven will do all the hard work while you kick back.

Why This Easy Mixed Vegetable Casserole Is a Game-Changer

• Time-saving magic: Traditional casseroles often involve chopping, blanching, and layering forever. Here, canned veggies and pre-made soup cut prep time to just 15 minutes.
• Hands-off cooking: Once it’s in the oven, you’re free to handle other tasks. Just wait for the top to turn golden and bubbly.
• Minimal cleanup: You only need one mixing bowl and one baking dish. Fewer dishes = happier you.
• Customizable: Add your favorite seasonings, cheeses, or even protein to make it your own.

Equipment You’ll Need for This Easy Mixed Vegetable Casserole

All you need is basic kitchen gear to whip up this creamy mixed vegetable bake. Here’s what you’ll want on hand:

• 9×13-inch baking dish: A standard casserole dish works perfectly for this recipe. Glass or ceramic hold heat well, giving you that perfectly browned, crispy topping.
• Mixing bowl: Use a medium-sized bowl to quickly combine your veggies and creamy sauce.
• Oven: Preheat to 350°F (175°C) for perfect cooking every time.
• Optional: A spatula or spoon for spreading the mixture evenly into the dish.

Simple Ingredients for Easy Mixed Vegetable Casserole

One of the best parts of this vegetable casserole with cheese is how simple the ingredients are. You probably have most of them sitting in your kitchen right now:

• Canned mixed vegetables: Save time (and your sanity) by using canned vegetables—I like to drain them well to avoid extra liquid in the dish.
• Condensed cream of chicken soup: Acts as the base for the creamy sauce. You can swap for cream of mushroom if you prefer a vegetarian option.
• Shredded white Cheddar cheese: Adds a rich, sharp flavor that melts beautifully. You can also use mozzarella or a pre-shredded cheese blend.
• Buttery round crackers: Crush these for a golden, crumbly topping that’s irresistibly crunchy.

Quick tip: If you’re out of crackers, panko breadcrumbs make a great substitute.

Easy Mixed Vegetable Casserole Recipe Details

• Servings: 6 servings
• Prep Time: 15 minutes
• Cook Time: 30 minutes
• Total Time: 45 minutes

Easy Mixed Vegetable Casserole Ingredients

• 2 (15-ounce) cans mixed vegetables, drained
• 1 small onion, diced
• 1 (10.75-ounce) can condensed cream of chicken soup
• 1 cup mayonnaise
• 1 cup shredded white Cheddar cheese
• 36 buttery round crackers, crushed

How to Make Easy Mixed Vegetable Casserole

1. Preheat: Start by preheating your oven to 350°F (175°C).
2. Combine the filling: In a medium mixing bowl, combine the drained mixed vegetables, diced onion, condensed soup, mayonnaise, and shredded cheese. Stir until well mixed.
3. Assemble the dish: Spread the mixture evenly into a 9×13-inch baking dish.
4. Add the topping: Sprinkle the crushed crackers evenly over the top for a crispy, golden crust.
5. Bake: Place the dish in the oven and bake for 30 minutes. You’ll know it’s done when the top is golden brown and the filling is bubbling around the edges.

Jake’s Tips for the Best Easy Mixed Vegetable Casserole

• Drain the veggies: Be sure to fully drain your canned vegetables to avoid a watery casserole.
• Cheese upgrade: While white Cheddar is my go-to, feel free to experiment with other sharp cheeses like Gruyère or Parmesan.
• Make ahead: Assemble the casserole a day in advance and store it in the fridge. Pop it in the oven when you’re ready to bake.
• Leftover magic: This reheats beautifully! Just cover it with foil and warm in a 350°F oven for 15-20 minutes.
• Double it: Feeding a crowd? Double the recipe and bake in two dishes—it’s just as easy to make twice the amount!

Quick Ways to Switch Up This Easy Mixed Vegetable Casserole

Feeling creative? Here are a few ways to adjust this quick mixed vegetable casserole to suit your taste:

• Add protein: Toss in shredded rotisserie chicken or cooked ground turkey for a heartier meal.
• Go veggie-heavy: Use fresh or frozen veggies instead of canned for more texture—just be sure to blanch fresh ones first.
• Spice it up: Stir in a pinch of garlic powder, paprika, or red pepper flakes for an extra kick.
• Gluten-free option: Swap the buttery crackers for gluten-free breadcrumbs or crushed rice crackers.

Easy Mixed Vegetable Casserole FAQs

Can I use fresh or frozen vegetables instead of canned?

Absolutely! Fresh vegetables should be blanched first, and frozen ones work great straight from the bag—just thaw them to remove excess water.

What’s the best way to store leftovers?

Store any leftovers in an airtight container in the fridge for up to 3 days. To reheat, bake at 350°F until warmed through.

Can I make a vegetarian version?

Yes! Swap the cream of chicken soup for cream of mushroom or celery soup to make this a healthy vegetable casserole recipe for vegetarians.

Can I prep this casserole in advance?

Totally. Assemble the casserole without the cracker topping, cover it tightly, and refrigerate for up to 24 hours. Add the cracker crumbs just before baking.

How can I make the topping extra crispy?

For a crispier topping, drizzle a bit of melted butter over the crackers before baking.

This Easy Mixed Vegetable Casserole is creamy, cheesy, and so quick to make, you’ll be reaching for this recipe whenever you need a stress-free side dish. What’s your favorite shortcut for busy weeknights? Let me know in the comments below!