Mediterranean Sauteed Shrimp & Fennel

Heat oil in a large skillet over medium heat. Add fennel and cook, stirring occasionally, until starting to brown, 6 to 8 minutes. Add tomatoes and oregano and cook, stirring and scraping up any browned bits, about 30 seconds. Add shrimp and cook, stirring occasionally, until pink and just cooked through, about 4 minutes. Stir in capers and pepper. Serve sprinkled with feta.