Vegetable Casserole Recipe
Introduction
This hearty vegetable casserole is a comforting blend of creamy mushroom soup, mixed vegetables, and cheese. It’s an easy, satisfying dish that works perfectly as a side or a main meal for busy weeknights.

Ingredients
- 1 small yellow onion
- 1 tablespoon butter
- 10.5 oz cream of mushroom soup
- ½ cup milk
- ½ cup sour cream
- 2 heaping cups frozen broccoli
- 3 cups frozen mixed vegetables
- 8 oz shredded cheddar cheese
- 2 large eggs
- 2 cups cooked rice
- ½ teaspoon garlic salt
- ½ teaspoon salt
- ½ teaspoon mustard powder
- ½ teaspoon Italian seasoning
- ¼ teaspoon pepper
- 1 cup crushed Ritz crackers for topping
- 2 tablespoons melted butter for topping
Instructions
- Step 1: Preheat the oven to 350°F (175°C).
- Step 2: In a large pot, melt the butter over medium heat. Sauté the chopped onion until softened, about 3-5 minutes.
- Step 3: Stir in the cream of mushroom soup, milk, sour cream, garlic salt, salt, mustard powder, Italian seasoning, and pepper. Mix until well combined.
- Step 4: Add 1 cup of the shredded cheddar cheese to the pot and stir until melted into the mixture.
- Step 5: Mix in the frozen broccoli and frozen mixed vegetables, cooking until heated through.
- Step 6: In a separate bowl, whisk the eggs and then incorporate them along with the cooked rice into the vegetable mixture. Stir until evenly combined.
- Step 7: Transfer the mixture into a greased casserole dish, spreading it evenly. Sprinkle the remaining shredded cheddar cheese evenly on top.
- Step 8: Cover the casserole with foil and bake for 20 minutes.
- Step 9: Meanwhile, combine the crushed Ritz crackers with melted butter. After the initial baking, remove the foil and sprinkle the cracker topping over the casserole.
- Step 10: Return the casserole to the oven and bake uncovered for an additional 10 minutes, until the topping is golden brown and crisp.
Tips & Variations
- For extra flavor, try adding a teaspoon of Worcestershire sauce or a pinch of smoked paprika to the soup mixture.
- Swap the frozen mixed vegetables for fresh seasonal veggies if preferred, adjusting cooking times accordingly.
- Use crushed breadcrumbs instead of Ritz crackers for a different topping texture.
- Double the recipe and bake in a larger dish for bigger gatherings.
Storage
Store leftover casserole in an airtight container in the refrigerator for up to 3 days. To reheat, cover with foil and warm in the oven at 350°F (175°C) until heated through, or microwave individual portions until hot.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I make this casserole ahead of time?
Yes, you can assemble the casserole a day in advance, cover it, and refrigerate. Add the cracker topping just before baking to keep it crisp.
Can I substitute the cream of mushroom soup?
You can use cream of chicken or cream of celery soup as alternatives, but the flavor profile will change slightly. Alternatively, use a homemade creamy sauce for a fresher taste.
PrintVegetable Casserole Recipe
This comforting Vegetable Casserole combines creamy mushroom soup, cheesy broccoli and mixed vegetables, and cooked rice into a hearty, baked dish perfect as a family-friendly meal or side. Topped with crunchy Ritz cracker crumbs and melted butter, it’s a deliciously satisfying casserole baked to golden brown perfection.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 6 servings 1x
- Category: Casserole
- Method: Baking
- Cuisine: American
Ingredients
Vegetables and Cheese
- 1 small yellow onion, diced
- 2 heaping cups frozen broccoli
- 3 cups frozen mixed vegetables
- 8 oz shredded cheddar cheese, divided
Base Mixture
- 1 tablespoon butter
- 10.5 oz cream of mushroom soup
- ½ cup milk
- ½ cup sour cream
- 2 large eggs, whisked
- 2 cups cooked rice
Seasonings
- ½ teaspoon garlic salt
- ½ teaspoon salt
- ½ teaspoon mustard powder
- ½ teaspoon Italian seasoning
- ¼ teaspoon pepper
Topping
- 1 cup crushed Ritz crackers
- 2 tablespoons melted butter
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C) to ensure it reaches the right temperature for baking the casserole evenly.
- Sauté Onions: In a large pot over medium heat, melt 1 tablespoon of butter and sauté the diced yellow onion until softened and translucent, enhancing their sweetness and flavor.
- Mix Base Ingredients: Stir in the cream of mushroom soup, milk, sour cream, garlic salt, salt, mustard powder, Italian seasoning, and pepper into the pot with the onions, mixing until well combined and smooth.
- Add Cheese: Add 1 cup of shredded cheddar cheese to the mixture and stir until the cheese is melted and incorporated, creating a creamy texture.
- Combine Vegetables: Mix in the frozen broccoli and mixed vegetables, stirring until they are heated through to ensure even cooking in the casserole.
- Add Eggs and Rice: Incorporate the whisked eggs and cooked rice into the vegetable mixture, blending thoroughly to create a consistent filling.
- Transfer to Dish: Pour the mixture into a greased casserole dish and evenly top with the remaining shredded cheddar cheese for a cheesy finish.
- Initial Bake: Cover the casserole dish with foil and bake in the preheated oven for 20 minutes to cook the filling and meld the flavors.
- Prepare Topping: While baking, combine the crushed Ritz crackers with 2 tablespoons of melted butter until the crumbs are evenly coated.
- Final Bake: Remove the foil, sprinkle the buttery cracker topping evenly over the casserole, and bake uncovered for an additional 10 minutes or until the topping is golden brown and crispy.
Notes
- For a gluten-free version, substitute cream of mushroom soup and crackers with gluten-free alternatives.
- You can add cooked chicken or turkey to increase protein content.
- Make sure not to overcook the vegetables initially; they will continue cooking in the oven.
- Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.
- To reheat, cover with foil and warm in a 350°F oven until heated through.
Keywords: vegetable casserole, broccoli casserole, baked casserole, creamy casserole, easy dinner, comfort food, rice casserole, cheesy vegetable dish

