Here's What You'll Need:-1 1/4 pounds boneless sirloin steak (about 1 inch thick), excess fat trimmed-Kosher salt-2 tablespoons extra-virgin olive oil-4 cloves garlic, smashed-1 large onion, sliced 1/4 inch thick-2 bell peppers (1 red, 1 yellow), sliced 1/2 inch thick-4 jarred pepperoncini, drained and thinly sliced-1 15 -ounce can crushed tomatoes-1/2 teaspoon dried oregano-Pinch of red pepper flakes-2 tablespoons chopped fresh parsley-Focaccia, for serving (optional)
Go HERE for the full recipe!