1 pound boneless, skinless chicken breasts
1/2 cup lemon juice
1/4 cup soy sauce
1/4 cup Dijon mustard
2 teaspoons vegetable oil
1/4 teaspoon cayenne pepper
1 cup regular, uncooked rice
Cut chicken breasts (kitchen scissors work best) into 1-inch cubes. Mix lemon juice, soy sauce, mustard, oil and pepper. Put marinade and chicken cubes in a 1-gallon bag and freeze.
To serve, thaw chicken and remove from marinade. Warm marinade in a small saucepan. Place chicken cubes about an inch apart on broiler pan treated with nonstick spray. Broil 4 to 5 inches from heat for 7 minutes, brushing with marinade once. Turn chicken cubes and broil another 4 minutes. Meanwhile, prepare rice according to package directions. Bring remaining marinade to a boil and serve over rice.