Get started by preheating your oven to 375°F (190°C) and lightly grease a 9x13 inch casserole dish.
Arrange the cubed chicken breasts evenly at the bottom of the prepared dish. Sprinkle generously with garlic powder, onion powder, salt, and black pepper, then toss gently to ensure the chicken is well coated.
Next, dollop the softened cream cheese over the chicken, pour in the heavy cream, and mix thoroughly until the chicken is coated in a creamy sauce.
Scatter the diced jalapeno peppers evenly across the top, then cover everything with the shredded cheddar cheese.
Bake in the preheated oven for 40-45 minutes, or until the chicken is completely cooked through and the cheese is bubbly and golden.
Just before serving, sprinkle the crispy chopped bacon over the casserole. Enjoy your delicious, healthy meal!