Jan 26, 2021 · This Creamy Chicken Casserole (aka Chicken Gloria) is always a hit at parties. The chicken is and mushrooms are so tender and tasty! This chicken bake is freezer friendly and reheats well. This is one of our all-time favorite and most … Jan 24, 2020 · Add more oil to the pan if needed along with mushrooms and saute until excess liquid from mushrooms evaporates and mushrooms are golden brown (5 min). Stir in 1/2 tsp onion powder and 2 minced garlic cloves and saute another 30 seconds or until fragrant.