1-Make the marinade: Whisk olive oil, coconut aminos, cajun seasoning, cayenne, salt, lemon pepper, thyme, and rosemary in a bowl. Add more cayenne for extra heat if desired.

2-Assemble the kabobs: Cut steak, bell peppers, and onion into 1-inch cubes. Combine beef with marinade. Thread skewers alternating beef, pepper, and onion, using two pepper colors for a nice look.

3-Grill the kabobs: Preheat grill to 375°F. Cook skewers at least 10 minutes, turning every 3 minutes, until beef internal temperature reaches 145°F for medium rare. In the last 2 minutes, brush with olive oil and sprinkle crushed pepper on both sides.

4-Oven method: If not grilling, preheat oven to 375°F. Place skewers on a lined baking sheet. Bake for 30 minutes, flipping every 10 minutes and brushing lightly with olive oil. During the last 5 minutes, sprinkle crushed pepper on both sides.