This oven baked 3-ingredient chicken à la king casserole is the kind of no-fuss comfort food that earns a permanent spot in a busy weeknight rotation. It has that old-school potluck charm my grandma loved, with tender chicken tucked into a creamy sauce and baked until hot and bubbly. When you need something simple, filling, and reliable without a long grocery list, this casserole absolutely delivers.
Serve this casserole with fluffy rice, buttered egg noodles, biscuits, or toast points to soak up the extra sauce. A crisp green salad or simple steamed green beans make a nice fresh contrast, and if you’re taking it to a gathering, it fits right in next to fruit salad, roasted carrots, or a classic Midwestern Jell-O side.
Oven Baked 3-Ingredient Chicken a la King Casserole
Servings: 6
Ingredients
3 cups cooked chicken, diced or shredded
2 cans condensed cream of chicken soup
1 package frozen mixed vegetables, about 12 ounces
Directions
1. Preheat the oven to 350°F and lightly grease a medium casserole dish.
2. In a large mixing bowl, stir together the cooked chicken, condensed cream of chicken soup, and frozen mixed vegetables until evenly combined.
3. Spread the mixture evenly into the prepared casserole dish.
4. Bake uncovered for 35 to 40 minutes, or until the casserole is hot throughout, bubbling around the edges, and the vegetables are tender.
5. Let the casserole rest for 5 minutes before serving so the sauce can settle slightly. Spoon onto plates or into bowls and serve warm.
Variations & Tips
Biscuit Topping: For a heartier version, spoon the mixture into the baking dish and top with refrigerated biscuit dough before baking. It turns this into more of a chicken pot pie style casserole and makes it especially cozy on a cold night.
Extra Seasoning: Even though the original version is famously simple, a pinch of black pepper, garlic powder, or onion powder can add a little extra flavor without changing the spirit of the recipe. I like this option when I’m using very plain leftover chicken.
Make-Ahead Tip: Assemble the casserole a day in advance, cover, and refrigerate until ready to bake. If it’s going into the oven straight from the fridge, add about 5 to 10 extra minutes to the baking time.
Serving Shortcut: If you want the full chicken à la king feel, serve it over toast, biscuits, rice, or egg noodles instead of eating it on its own. That’s also a great way to stretch the casserole a little further for bigger families.