Brown beef in skillet over medium heat. Add onion and sauté.
Blend in water, oregano, garlic and salt. Cook uncovered over low heat 12 minutes or until excess moisture evaporates.
In a saucepan, heat vegetable oil over low heat. Add frozen green chile. Cook until no longer frozen (minimum 165ºF). Add beans. Cook 15 minutes or until excess moisture evaporates. Mash beans. Stir in half of cheese, cooking until melted. Add to meat mixture.
Spoon about 2 Tbsp. mixture onto tortillas. Top mixture with remaining cheese.
Roll tortillas once toward middle, fold over edges and roll again over folded edges.
Place each burrito seam-side down on a cookie sheet. Bake at 325ºF for 10 minutes.