Combine orange juice, soy sauce, 1/4 cup mustard, honey, onion and ginger in a saucepan. Salt and pepper to taste.
Bring orange juice mixture to a boil then reduce to a simmer for 1/2 hour.
Combine olive oil, 1 Tbsp mustard, lemon, orange and garlic in mixing bowl. Salt and pepper to taste.
Rub the olive oil mixture all over the hens and marinate them for at least 1 hour.
Roast the hens in a 375 degree F oven for 25 minutes.
Brush the hens with the orange juice mixture.
Grill the hens for 7 minutes while basting with the orange juice mixture. (Can also do this under the broiler if no access to a grill).
Serve with the remaining orange juice mixture on the side.
mark.goadrich