Dump frozen mixed vegetables over chicken breasts, combined with 3 ingredients

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The Ultimate 3-Ingredient Dump-and-Bake Chicken & Veggie Casserole

If you want the definition of a true “set-it-and-forget-it” comfort food dinner with virtually zero prep work, this classic dump-and-bake recipe is a weeknight lifesaver. By layering chicken breasts, frozen mixed vegetables, and just three simple pantry ingredients, you get a rich, creamy, bubbling dinner that practically cooks itself.

The Culinary Science of Dump-and-Bake Cooking

Cooking raw chicken breasts directly alongside frozen vegetables in a creamy sauce relies on a specific baking dynamic:
  1. Moisture Management: Frozen vegetables release water as they thaw in the oven. Instead of diluting the dish, that escaping moisture combines with a thick, condensed cream soup base to create a rich, self-making gravy as the chicken bakes.
  2. Moist-Heat Braising: Baking the chicken completely submerged or covered in the creamy sauce prevents the lean meat from drying out, keeping the chicken breasts exceptionally tender.

Ingredients

  • The Foundation:
    • 1.5 to 2 lbs boneless, skinless chicken breasts (whole or cut into bite-sized chunks)
    • 1 bag (12–16 oz) frozen mixed vegetables (peas, carrots, corn, and green beans), unthawed
  • The 3 Magic Ingredients:
    • Ingredient 1: 2 cans (10.5 oz each) condensed cream soup (Cream of Chicken, Cream of Mushroom, or Cheddar Cheese soup work brilliantly)
    • Ingredient 2: 1 packet (1 oz) dry seasoning mix (Ranch seasoning, Onion soup mix, or Italian dressing mix)
    • Ingredient 3: 1.5 cups shredded cheddar cheese (or crushed Ritz crackers tossed in melted butter for that ultimate buttery crunch topping!)

Step-by-Step Instructions

1. Layer the Pan

  1. Preheat your oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish.
  2. Arrange the chicken breasts in a single layer across the bottom of the dish. Season lightly with a pinch of salt and pepper if desired.
  3. Dump the entire bag of frozen mixed vegetables directly over the top of the chicken, spreading them out evenly.

2. Mix and Pour the Sauce

  1. In a mixing bowl, whisk together the 2 cans of condensed cream soup and the dry seasoning packet (Ranch or onion soup mix) until smooth.
  2. Pour the creamy mixture evenly over the vegetables and chicken, making sure everything is well coated.

3. Bake

  1. Cover the baking dish tightly with aluminum foil (this traps the steam so the chicken cooks through and stays tender).
  2. Bake in the preheated oven at 375°F for 35 to 45 minutes (depending on the thickness of your chicken breasts), until the chicken is cooked through (internal temp of 165°F).

4. Add the Cheese (or Ritz Cracker) Crown

  1. Remove the foil from the baking dish.
  2. Sprinkle your 3rd ingredient—the shredded cheddar cheese (or crushed buttery Ritz crackers)—evenly across the top.
  3. Return to the oven uncovered for 5 to 8 minutes, or switch to broil for 1 to 2 minutes, until the cheese is melted and bubbling or the Ritz topping is golden brown and crispy.

5. Serve

  1. Let it rest for 5 minutes before serving so the sauce thickens up slightly. Serve on its own, or spooned over white rice, egg noodles, or mashed potatoes!

Pro-Tips for Success

  • Soup Variations: Mixing a can of Cream of Chicken with a can of Cheddar Cheese soup creates an exceptionally rich, velvety cheese sauce that pairs wonderfully with the veggies.
  • Add a Starch: If you want a complete one-dish meal, you can stir 1 cup of dry, uncooked long-grain white rice into the bottom of the dish underneath the chicken along with an extra splash of broth or milk—it will absorb the flavors and cook to fluffy perfection as it bakes!

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