Healthy Shepherd's Pie with Rosemary Herb Seasoning - Fabulessly Frugal

Ingredients

• 1 1/2 lb ground beef
• 1 small onion (diced fine)
• 1 teaspoon garlic powder
• 1 teaspoon pepper
• Salt to taste
• 1 bag frozen peas and carrots (12 oz bag)
• 3 cups frozen corn
• 3 cups brown gravy (I just make own with beef broth and cornstarch)
• 1 teaspoon rosemary seasoning blend (*see blend recipe below)
• 4 cups mashed potatoes (about 2.5 pounds raw)
• 4 ounces cream cheese
• 1-2 cups cheddar cheese for top as desired
• 1/4 cup dried rosemary.
• 1 tablespoon Kosher salt
• 1/2 teaspoon black pepper
• 1 teaspoon dried lemon peel
• 1 tablespoon dried granulated garlic