Breakfast Quesadilla with Black Beans and Eggs Recipe

Ingredients

• 2 teaspoons butter
• 1/4 cup chopped red onion
• 6 large eggs, beaten in a bowl
• 1/8 teaspoon salt, or to taste
• Pinch black pepper
• 1 (15-ounce) can black beans, rinsed and drained
• 1 (4-ounce) can chopped mild green chiles, drained
• 1/2 cup cilantro leaves
• 6 (9-inch) flour tortillas
• Pickled jalapeño peppers from a jar (optional)
• 1 1/2 cups grated sharp cheddar or Monterey jack cheese, or more, to taste
• Vegetable oil, to reheat the quesadillas
• Salsa