Beef and Rice Stuffed Bell Peppers

Ingredients (12)

• + 6 bell peppers add to pantry
• + 2 ½ cups chunky tomato sauce add to pantry
• + ½ onion, very thinly sliced add to pantry
• + 1 cup beef broth add to pantry
• + ¼ teaspoon red pepper flakes add to pantry
• + 1 ½ pounds lean ground beef add to pantry
• + 1 ½ cups cooked rice add to pantry
• + ½ cup freshly shredded Parmigiano-Reggiano cheese add to pantry
• ✓ ¼ cup chopped fresh flat-leaf parsley
• ✓ 4 cloves garlic, minced
• ✓ 2 teaspoons salt
• + ½ teaspoon freshly ground black pepper add to pantry