Jack O'Lantern Shepherd's Pie Stuffed Peppers

orange peppers (See Note*)

ground beef

medium onion (chopped (roughly 1/2 cup))

garlic clove (crushed or minced)

tomato paste (one 6-ounce can)

Worcestershire sauce

beef broth

(or about two 10 oz. packages frozen vegetable medley, thawed (carrots, peas, corn, and green beans))

Idaho® russet potatoes (peeled and cut into about 1 inch chunks)

Greek yogurt or sour cream

milk

kosher salt

shredded cheddar cheese (divided)