Cheesy Beef and Veggie Quesadillas

In a large skillet over medium heat, brown and break up the ground beef. Season with salt, black pepper, and taco seasoning. Sauté the finely diced yellow onion with the ground beef for 4-5 minutes.

Mix in the tomato paste and water, then cook for 2 minutes. Add the rinsed and drained black beans to the skillet and mix well. Remove the skillet from heat.

In a clean skillet, heat a small amount of vegetable oil over medium heat. Place a tortilla in the skillet. On one half of the tortilla, sprinkle a layer of the shredded sharp cheddar and Monterey Jack cheese mixture followed by a portion of the beef mixture, corn, diced avocado, and another layer of cheese.

Using a spatula, carefully fold the tortilla over the filling, and cook until the cheese is melted and the filling is heated through, about 2-3 minutes per side. Repeat with the remaining tortillas.

Serve the quesadillas with guacamole or salsa on the side.