Spray a 10x8 inch baking pan with nonstick cooking spray and set aside. Rinse and dry the chicken tenders. Remove all visible fat.
In a medium-sized bowl, mix the orange marmalade, mustard, soy sauce and garlic. Dip the chicken pieces in the sauce and arrange in the baking pan. Spoon the remaining mixture over the chicken and bake uncovered for 40 minutes.