Creamy Baked Fajita Chicken Casserole

Name: Creamy Baked Fajita Chicken Casserole
Cuisine: American, Mexican, Latin American, TexMex
Ingredients: 2 large chicken breasts, skinless, boneless, cut into cubes; 2 bell peppers, red, green, yellow, seeded and cut into strips; 1 medium onion, minced; 8oz (225g) cream cheese, softened; 1/3 cup tomato sauce of your choice (marinara sauce, canned crushed tomatoes…); 1 packet of Fajita seasoning; 1 tablespoon vegetable oil; 1 cup shredded Mozzarella (or your favorite cheese, Pepperjack, Monterrey Jack, Cheddar…); Fresh chopped cilantro, or parsley, for garnish