1 Preheat oven to 350 °F. 2 Combine scallions, celery, and corn in a small saucepan. Add just enough water to cover. 3 Cover, bring to a boil, and reduce heat to medium. Simmer for 5 minutes, until vegetables soften. Drain vegetables. Set aside to cool.4 Combine avocado, cilantro, and beans in a large mixing bowl. Add cheese and salsa, and mix. 5 When corn mixture has cooled slightly, add to avocado mixture. 6 In a large nonstick pan over medium heat, warm each tortilla about 15 seconds on each side. Place each tortilla on a flat surface. Spoon ? cup of the mixture into the center of the tortilla. Fold the top and bottom of the tortilla over the filling. Fold in the sides to make a closed packet. 7 Repeat with the remaining tortillas. 8 hen all tortillas are wrapped, continue heating in the oven 5 minutes, until all are warm and cheese is melted.