Preheat 350° and lightly grease a 2-quart bakingdish.
In a large skillet, sauté the onion with the olive oil. Add beef and butter and slowly stir in the flour. Add broth, Worcestershire, peas, carrots and salt and pepper to taste. Spoon mixture into prepared baking dish.
Cook onion and chile pepper in oil in a large nonstick skillet until onions become translucent and tender. Add the shrimp and cook until opaque for about 2-4 minutes, stirring frequently. Stir sauce into skillet, heat through.
Serve in warm tortillas with fresh chopped cilantro.