Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      tablespoons   minced fresh onion
     1/2  teaspoon      dried whole thyme
     1/4  teaspoon      grated lemon rind
     1/8  teaspoon      ground red pepper
   3      tablespoons   plain low-fat yogurt
   1      tablespoon    nonfat mayonnaise
   1      tablespoon    Creole or Dijon mustard
   1      tablespoon    reduced-calorie catsup
   1      teaspoon      paprika
     1/2  teaspoon      onion powder
     1/8  teaspoon      salt
     1/8  teaspoon      ground red pepper
   4                    farm-raised catfish fillets -- (4-ounce)
                        vegetable cooking spray
   4                    lemon wedges

Preparation:

Combine first 8 ingredients in a small bowl; stir well. Cover and chill. Combine paprika and next 3 ingredients; stir well. Rub mixture over both sides of fish. Arrange fish in a wire grilling basket coated with cooking spray; place on grill rack over hot coals. Cook 6 minutes on each side or until fish flakes easily when tested with a fork. Yield: 4 servings (serving size: 3 ounces fish and 2 tablespoons sauce).