Crockpot Cheesy Corn & Vegetable Casserole

Creamy, cheesy, and comforting, this easy slow-cooker casserole combines sweet corn with tender vegetables and plenty of melted cheese. It’s a simple side dish for family dinners, holidays, or potlucks.

Servings: 8
Prep Time: 15 minutes
Cook Time: 3–4 hours on LOW
Total Time: About 4 hours 15 minutes

Ingredients

• 4 cups corn kernels, fresh, frozen, or canned and drained
• 1 cup diced carrots
• 1 cup diced zucchini
• 1 cup diced red bell pepper
• ½ cup diced yellow onion
• 1 can (10.5 oz / 298 g) condensed cream of mushroom soup
• 4 oz (115 g) cream cheese, softened
• ½ cup sour cream
• 1 cup shredded sharp cheddar cheese
• ½ cup shredded Monterey Jack cheese
• 2 tablespoons butter, melted
• ½ teaspoon garlic powder
• ½ teaspoon onion powder
• ½ teaspoon paprika
• ½ teaspoon salt, or to taste
• ¼ teaspoon black pepper
• 2 tablespoons chopped fresh parsley, for garnish

Instructions

1. Lightly grease the inside of a 6-quart crockpot with cooking spray or a little butter.
2. If using frozen corn, you can add it directly to the crockpot. If using canned corn, drain it thoroughly.
3. Add the corn, carrots, zucchini, red bell pepper, and onion to the crockpot. Stir to distribute the vegetables evenly.
4. In a separate bowl, combine the cream of mushroom soup, softened cream cheese, sour cream, melted butter, garlic powder, onion powder, paprika, salt, and black pepper.
5. Stir until the mixture is as smooth and well combined as possible.
6. Pour the creamy mixture over the vegetables.
7. Add ½ cup of the cheddar cheese and ¼ cup of the Monterey Jack cheese. Stir everything together gently.
8. Cover the crockpot and cook on LOW for 3–4 hours, or until the vegetables are tender and the casserole is hot and creamy.
9. About 15–20 minutes before serving, sprinkle the remaining cheddar and Monterey Jack cheese evenly over the top.
10. Cover again and allow the cheese to melt completely.
11. Turn off the crockpot and let the casserole rest for about 5 minutes.
12. Garnish with fresh parsley and serve warm.

Nutrition Information

Approximate per serving, based on 8 servings:

Calories: 285
Protein: 9 g
Carbohydrates: 25 g
Fat: 17 g
Fiber: 3 g
Sugar: 7 g
Sodium: 520 mg

Nutrition will vary depending on the brands of soup, cheese, sour cream, and the exact vegetables used.

Allergen Information

Contains:

• Milk/dairy from cream cheese, sour cream, butter, and cheese
• May contain wheat/gluten depending on the condensed soup

For gluten-free: Use a certified gluten-free cream soup or a homemade gluten-free substitute.

For vegetarian: Use vegetarian-friendly cream of mushroom soup and verify the cheese and soup ingredients.

Recipe Tips & Q/S

Q: Can I use only corn and skip the other vegetables?
A: Yes. You can replace the additional vegetables with extra corn, although the casserole will have a sweeter and less varied texture.

Q: Can I use frozen mixed vegetables?
A: Yes. About 4–5 cups of frozen mixed vegetables can be used. There is no need to thaw them first.

Q: Can I use canned corn?
A: Yes. Drain it very well before adding it to the crockpot.

Q: Can I use cream of chicken soup?
A: Yes. It will create a slightly different flavor and is a good option if you don’t need the casserole to be vegetarian.

Q: Can I make this casserole ahead of time?
A: Yes. Prepare the ingredients and refrigerate them in a covered container for up to 24 hours. Transfer everything to the crockpot when ready to cook.

Q: Can I add bacon?
A: Yes. Cooked and crumbled bacon makes a delicious addition. Stir it in near the end or sprinkle it over individual servings.

Q: Can I make it spicy?
A: Yes. Add diced jalapeño, a pinch of cayenne pepper, or a little crushed red pepper.

Q: Can I add more cheese?
A: Absolutely. Extra cheddar, Monterey Jack, mozzarella, or Colby Jack can be added according to your preference.

Q: Why is my casserole watery?
A: Vegetables such as zucchini release moisture during cooking. If the casserole is too thin, remove the lid during the final 20–30 minutes to allow some moisture to evaporate.

Q: Can I cook it on HIGH?
A: Yes. Cook on HIGH for approximately 1½–2½ hours, checking the vegetables toward the end. LOW cooking generally gives a creamier result.

Q: How do I store leftovers?
A: Refrigerate in an airtight container within 2 hours and use within 3–4 days.

Q: Can I freeze it?
A: Yes, but dairy-based casseroles can sometimes become slightly grainy after thawing. For the best texture, refrigerate and enjoy fresh.

Q: How do I reheat it?
A: Reheat individual portions in the microwave or reheat larger amounts gently in a covered skillet or oven until hot throughout.