Step 1

Preheat the oven to 375˚F. Lay the chicken breasts flat in a large baking dish and season with garlic powder, 1/4 tsp salt and 1/4 tsp pepper.

Step 2

Mix the cheeses, then set aside 1/3 of it (about a cup.) In a large bowl, mix the mayo, sour cream, mustard, onion, remaining salt and pepper, and the remainder of the cheeses. Then fold in the chopped spinach and diced artichoke hearts.

Step 3

Spread mixture on top of chicken then top with cup of cheese that you set aside. Bake on middle rack of oven for 30-40 minutes or until the chicken is cooked through (internal temp of 165˚F).

Step 4

Serve hot and ENJOY!