Hearty Chicken and Veggie Pot Pie with Cheddar Biscuits

Ingredients

• 1 cup shredded mozzarella cheese
• 1 tbsp baking powder
• 1/2 tsp salt
• 1/2 tsp ground black pepper
• 2 cups all-purpose flour
• 1 cup shredded mild cheddar cheese
• 1/2 cup cold unsalted butter, cubed
• 2 tsp minced garlic
• 1 tsp onion powder
• 2 10.5oz cans cream of chicken soup
• 1 cup milk
• 3 cups frozen mixed vegetables
• 3 cups cooked shredded chicken, from a store-bought rotisserie chicken