Step 1

Preheat oven to 400º

Step 2

In a large bowl, thoroughly combine cream cheese, sour cream, ½ cup parmesan, 1 cup monterey jack, garlic, onion, salt, and pepper together

Step 3

Stir in the chicken, artichoke hearts, and spinach

Step 4

Spread into a 9x13 inch casserole dish

Step 5

Top with remaining cheeses

Step 6

Bake in preheated oven until bubbly and cheese is turning brown, about 30 minutes