Preheat oven to 350°F.
In 12-inch cast iron skillet (or other oven-safe skillet), begin browning meat over medium heat.
When meat starts to brown, stir in onion and green pepper. Continue cooking, stirring occasionally, until meat has browned completely, about 10 minutes. Drain grease.
Reduce heat to medium-low and stir in tomatoes, Worcestershire and enchilada sauces, and salt and pepper to taste. Simmer 5 minutes, stirring occasionally.
Remove from heat and sprinkle cheese evenly over meat mixture.
Place skillet in oven and bake 5 to 10 minutes, or until cheese melts.
Sprinkle Fritos evenly over top. Lightly press Fritos into pie and serve.