For Shrimp: Preheat the grill to medium-high heat (alternatively, you can use a grill pan on the stove top). In a medium bowl, combine shrimp, olive oil, onion powder, red pepper flakes and salt. Toss to coat fully. Place shrimp on the hot grill and cook about 3-4 minutes on each side or until the shrimp is opaque and has grill marks. Remove from the grill and set aside.