In a large mixing bowl, combine warm water and sugar. Sprinkle yeast over the warm water. Let dissolve. Using the flat paddle mixer attachment stir in the oil. Add egg, salt and 1 cup of flour. When combined, switch to dough hook and add additional 1 1/3 cup of flour. Knead for about 3-5 minutes, until smooth and elastic.
Cover with a damp cloth while you make the filling.
Meanwhile chop onion and green pepper. Cook onion and peppers along with sandwich steaks over medium heat. Cook until steak is no longer pink. Season with salt and pepper to taste.
Drain and set aside.
Preheat oven to 350 degrees. Spray 12 cup muffin pay with non stick cooking spray. Make sure it grease it well.
Divide dough into 12 equal balls. Place each dough ball in muffin cup and press along bottom and sides to form a well in the center.
Combine 6 ounces of cheese and steak mixture.
Next divide the mixture evenly among the 12 cups. Take remaining 2 ounces of cheese and evenly sprinkle over tops.
Bake for 15-18 minutes or until dough is golden brown and cheese is melted.