Prepare Classic Beef Gravy.
Classic Beef Gravy:
Melt 1/4 cup butter in large nonstick skillet over medium heat until melted. Stir in 1/4 cup all-purpose flour; cook 5 to 7 minutes until mixture is deep brown, stirring often. Whisk in 2 cups reduced-sodium beef broth until smooth; simmer 3 minutes, stirring often. Reduce heat to medium-low heat; cook 2 to 3 minutes until thickened. Stir in 1 teaspoon beef bouillon granules and 1/4 teaspoon pepper. Season with salt, as desired.
Preheat oven to 450°F. Heat 10 to 12 inch cast iron or nonstick skillet over medium heat until hot. Add Ground Beef and onions; cook 8 to 10 minutes, breaking into 3/4-inch crumbles and stirring occasionally. Stir in gravy, frozen vegetables and pepper.
Top beef mixture with potatoes, spreading evenly; sprinkle with cheese, if desired. Bake in 450°F oven 20 to 25 minutes or until bubbly and cheese begins to brown. Let stand 10 minutes before serving.
Nutrition information per serving: 408 Calories; 171 kcal Calories from fat; 19 g Total Fat; 10 g Saturated Fat; 6 g Monounsaturated Fat; 112 mg Cholesterol; 690 mg Sodium; 30 g Total Carbohydrate; 4.7 g Dietary Fiber; 31 g Protein; 4.1 mg Iron; 7.7 mg Niacin; 0.6 mg Vitamin B6; 2.8 mcg Vitamin B12; 7.1 mg Zinc; 23.7 mcg Selenium; 101.9 mg Choline;