Meanwhile, in 12-inch nonstick skillet, cook turkey over medium-high heat 5 to 7 minutes, stirring occasionally, until no longer pink. Add garlic, mushrooms and bell pepper; cook 3 to 4 minutes, stirring occasionally, until vegetables are crisp-tender. Stir in remaining 1/4 cup Bisquick mix until blended. Stir in peas, salt, pepper and remaining 2 cups milk. Cook until mixture bubbles and thickens. Stir in remaining Parmesan cheese.