Combine potato flakes, cornmeal, garlic salt and pepper in a large bowl. Stir in milk, corn, cheese, and green onions. Let stand 2 minutes.

Scoop into 40 1-inch balls and place on a baking sheet. Flatten into 1/2 inch thick patties.

Spray a large nonstick skillet with cooking spray and heat over medium heat. Place patties in a single layer in pan. Brown patties about 4 minutes per side, spraying with additional cooking spray as needed. Repeat with remaining patties.

Serve warm, garnished with a dollop of sour cream and green onions or shredded cheese.