Vegetarian Sheet Pan Nachos

Name: Vegetarian Sheet Pan Nachos
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: Mexican
Ingredients: 4 tablespoons butter; 4 tablespoons flour; 1 1/2 cups milk; 2 cups Mexican cheese or a mix of Monterrey jack, mozzarella and cheddar; 1 teaspoon nacho, taco or fajita seasoning; 1 16 ounce bag tortilla chips; 1 can black beans, rinsed and drained; 1 bell pepper, diced; 1 cup frozen corn, defrosted; 1 tomato, seeded and diced; 1/2 cup sour cream; 1 cup guacamole, or 1 ripe avocado, cut into chunks; 1 lime, cut into wedges; pickled onions (recipe linked below); radish, sliced; salsa; hot sauce; scallions, diced; cilantro; pickled jalapeños