Heat oven to 375. Line a rimmed baking sheet w/ foil. Spray foil w/ cooking spray.
In lg bowl, mix ground turkey, bread crumbs, egg, garlic and 1/4 cup picante sauce. Mix well. Shape mix into 40, 1"-meatballs. Place meatballs on baking sheet. Bake 15 mins, turning 1/2 way through cook time.
In lg skillet over med-high heat, heat remaining picante sauce and jelly to boiling. Reduce heat to low. Cook, stirring, for 15 mins. Add meatballs to skillet and cook until meatballs are hot. Serve w/ toothpicks.