When I need an easy cookout side that feels festive without making a mess of the kitchen, this 5-Ingredient Oven Independence Day Delight is one of those dependable casseroles I come back to again and again. Frozen homestyle diced potatoes make it wonderfully simple, while a handful of everyday fridge staples turn it into a bubbly, hearty bake with big backyard-barbecue energy and plenty of flavor for feeding family and friends.

This casserole goes beautifully with grilled burgers, hot dogs, barbecue chicken, pulled pork, or even a platter of fresh summer fruit. I also like serving it with a crisp green salad or a simple tomato and cucumber salad to balance the rich, creamy potatoes, and if you're setting out a holiday spread, it fits right in beside baked beans, corn on the cob, and cold lemonade.

5-Ingredient Oven Independence Day Delight

Servings: 8

Finished cheesy potato casserole in a glass baking dish
Finished cheesy potato casserole in a glass baking dish

Ingredients

1 bag (28 to 32 ounces) frozen homestyle diced potatoes

1 cup sour cream
1 can (10.5 ounces) condensed cream of chicken soup
1 1/2 cups shredded cheddar cheese, divided
1/2 cup ketchup

Directions

1. Preheat the oven to 375°F and lightly grease a 9x13-inch glass casserole dish.

2. Add the frozen homestyle diced potatoes to the casserole dish. Spoon in the sour cream, cream of chicken soup, ketchup, and 1 cup of the shredded cheddar cheese.

3. Stir everything together right in the dish until the potatoes are evenly coated, then spread the mixture into an even layer.

4. Cover the dish with foil and bake for 35 minutes.

5. Remove the foil, sprinkle the remaining 1/2 cup cheddar cheese over the top, and return to the oven for 15 to 20 minutes, until the potatoes are tender and the top is hot and bubbly.

6. Let the casserole rest for 5 to 10 minutes before serving so it can set up a bit and scoop more neatly.

Variations & Tips

For a richer flavor: Swap the cheddar for a Colby Jack blend or use half cheddar and half mozzarella for an extra melty finish that kids usually love.

For a little backyard barbecue twist: Replace the ketchup with your favorite barbecue sauce for a smokier, slightly sweeter casserole that pairs especially well with grilled meats.

For picky eaters: Stir in a little extra cheese and keep the top plain without herbs or garnish. Sometimes simple and familiar is exactly what gets everyone back to the table happy.

Make-ahead tip: You can mix the casserole a few hours ahead, cover it, and refrigerate it until you're ready to bake. If it goes into the oven cold, add about 5 to 10 extra minutes to the covered baking time.

Texture tip: If you like crispier edges, bake the casserole in a slightly larger dish so the potatoes spread out more, and let it bake uncovered for the last few extra minutes until the corners turn beautifully golden.