- Prepare grill for medium heat. Mix oregano, cumin, salt, and red pepper flakes in a bowl to combine; set spice mixture aside.
- Beginning and ending with bell pepper, thread pieces of bell pepper, onion, salmon, and folded lemon slices onto 8 pairs of parallel skewers to make a total of 8 kebabs. Brush with oil and season with reserved spice mixture.
- Grill or broil, turning every 2 to 3 minutes, until fish is opaque throughout, cooking 5 to 8 minutes. Serve with creamy polenta.
Serves 4 to 8
Beverage pairing: Sauvignon Blanc or an American-style pale ale