in a large saute pan, heat the olive oil. When the pan is smoking hot, add the frog legs and brown slightly on both sides, about 2-3 minutes. Remove the frog legs. Add the flour to the oil. Stir to 2-3 minutes to make a light brown roux. Add the onions, peppers, celery, salt and cayenne. SAute the vegetables for 3-4 minutes or until wilted. Add the garlic and cook for 1 minute. Add the tomatoes and Tabasco. When the mixture comes to a boil, reduce to simmer. Simmer for 25-30 minutes. Lay the frogs legs in the sauce and cook for 3-4 minutes, basting with the sauce. Spoon the mixture over steamed rice. Garnish with green onions and peppers.