4 skinless
boneless chicken breast halves
cut into cubes
1 tablespoon olive oil
1 tablespoon minced garlic
1 teaspoon red pepper flakes
1 pinch salt and freshly ground black pepper to taste
1 yellow bell pepper
diced
1 onion
diced
¼ cup pitted kalamata olives
diced
¼ cup capers
drained
1 cup halved cherry tomatoes
1 pound shredded mozzarella cheese
1 cup crumbled feta cheese
4 Italian-style hoagie buns
split lengthwise and toasted
1/4 cup artichoke aioli (see footnote for recipe link)
¼ cup chopped fresh basil