To pan-fry: Spray a skillet with cooking spray or a little butter or oil. Pan-fry in batches over medium heat until golden brown, 3 to 5 minutes per side.
To freeze for later: Place cakes on a baking sheet lined with waxed paper. Freeze until firm then transfer from the baking sheet to a container or resealable plastic bag. Thaw before baking or pan-frying.
Nutrition data for this recipe includes the full amount of lemon-lime soda. The actual amount of lemon-lime soda consumed will vary.