Slice your palm hearts into circles, punching out the “center” with a utensil to create shrimp or calamari shapes.
Prepare your batter and coating. In one bowl have the cornstarch, in the next - plant milk and lemon juice, and in the third bowl - panko, coconut flakes, and old bay seasoning.
Dredge pieces of pal hearts in cornstarch, followed by the plant milk and lemon juice, and finally the panko mix. Transfer to a parchment-lined baking sheet. Give them a little spray with oil.
Bake at 400F for approximately 18 minutes, until crisp.