Preheat your oven: Begin by setting your oven to 350°F (175°C).
Prepare the baking pan: Grease a 9×13 inch baking pan with 1 tablespoon of butter to ensure your casserole doesn't stick.
Mix the base: In a medium bowl, combine 1 can of cream of chicken soup, 1 can of cream of mushroom soup, 1 can of water, and 2 cups of Minute Rice. Stir until everything is well incorporated.
Pour the mixture: Transfer the creamy rice mixture into the prepared baking pan, spreading it evenly across the bottom.
Place the chicken: Take 1 lb of boneless, skinless chicken breasts and lay them evenly on top of the rice mixture.
Add the seasoning: Sprinkle 1 envelope of Lipton Onion Soup mix over the chicken, ensuring it is well covered.
Cover the pan: Tightly cover the baking pan with aluminum foil to trap moisture and ensure even cooking.
Bake: Place the pan in the preheated oven, baking for 1 to 1.5 hours. Check for doneness: the chicken should be cooked through, reaching an internal temperature of 165°F (74°C).