Grilled Honey-Mustard Chicken Sandwiches

A flavorful dinner made ready in 30 minutes. Thank you Betty Crocker

1/4 cup Dijon mustard
2 tablespoons honey
1 teaspoon dried oregano leaves
1/8to 1/4 teaspoon ground red pepper (cayenne)
4 boneless skinless chicken breasts (about 1 1/4 lb)
4 whole-grain sandwich buns, split
4 slices tomato
4 leaves leaf lettuce

• Heat gas or charcoal grill. 
• In small bowl, mix mustard, honey, oregano and red pepper.
• Brush on both sides of chicken.
• Place chicken on grill over medium heat. 
• Cover grill
• Cook 12 to 15 minutes, brushing frequently with mustard mixture and turning occasionally, until juice of chicken is clear when center of thickest part is cut (at least 165°F). 
• Discard any remaining mustard mixture. 
• Serve chicken in buns with tomato and lettuce.