simple shepherds pie for two

Ingredients

• 1 1/2 cups prepared instant mashed potatoes or 3/4 lb potatoes prepared with 3 tbsp butter and 1/2c milk
• - salt and pepper
• 1/2 pound hamburger or 1/4 hamburger, 1/4 ground turkey
• 1/2 tablespoon oil
• 1 clove garlic, minced or grated
• 1/2 medium onion, roughly chopped
• 1 package brown gravy (dry mix)
• 1/2 cup water
• 1 - stalk celery, chopped
• 1 small carrot, shredded
• 1/2 cup frozen peas (thawed, any excess water disgard)
• 1/4 cup canned kernal corn, or frozen corn thawed
• 1 cup shredded cheese (mozzarella, cheddar, parmesan, colby)
• 1 1/2 teaspoons dried parsley (about 3 good shakes)
• - cooking spray