In a boil, add the cleaned shrimp, season with cayenne pepper, thyme, rosemary, salt, and pepper. CHopp the onion, and bell pepper.
Add half of the oil into the shrimp combine and set aside.
Place a skillet over medium-high heat and heat the oil. Saute the onion for a few seconds then add the pepper and stir. Cook for about 3 minutes and remove onto a plate and set aside.
Add the seasoned shrimp on a layer and cook for about 1-2 minutes per side or until it's pink.
Add the onion mixture and combine.
Allow to warm up and take off the heat. Drizzle some lemon juice over the shrimp.
Serve with your favorite side dish.