Sauce:
1/4 cup Dijon mustard
2 Tbsp. honey
2 Tbsp. dried oregano
1 tsp. water
1/4 tsp. garlic powder
1/8–1/4 tsp. cayenne pepper
Mix all ingredients. Set aside.
Sandwiches:
4 boneless skinless chicken breast halves
4 sandwich or hoagie buns
Tomato slices
Shredded lettuce