Huevos Rancheros

Name: Huevos Rancheros
Ingredients: 1 teaspoon vegetable oil; 1 medium onion, coarsely chopped; 2 large garlic cloves, minced; 1 jalapeño pepper, seeded and minced; 1 tablespoon minced fresh cilantro; 1 teaspoon pure chile powder; One 10-ounce can enchilada sauce; One 8-ounce can tomato sauce; 1 teaspoon oregano, preferably Mexican; 4 corn tortillas; Vegetable oil spray; 1 cup canned low-fat refried beans; 1 cup loosely packed grated Monterey Jack cheese (2 ounces); 4 large eggs, lightly beaten; 4 large egg whites; 1/4 cup prepared salsa; Salt and freshly ground pepper; 1 teaspoon unsalted butter