In a medium saucepan, heat the oil over medium heat. Add 2 teaspoons cumin, flour and tomato paste. Cook, whisking constantly, for 1 minute. Slowly whisk in the broth and water; bring to a boil. Reduce the heat to low and simmer until slightly thickened (5 to 7 minutes). Season with salt and pepper to taste, and then set aside.
Assemble the ENCHILADAS:
In a large bowl, combine 2 cups of the cheese, beans, spinach, corn, green onions (white parts) and cumin. Sprinkle with salt and pepper.
Preheat the oven to 400℉. Spray one 10x14 inch pyrex pan with nonstick spray (or two 8x8 inch pans).
Wrap 4 tortillas in a damp paper towel and microwave for 20 seconds. Lay a tortillas on a flat work surface and pile about ⅓ cup of the filling down the middle. Roll the tortilla tightly around the filling and place it seam-side-down in the prepared pan. Repeat with remaining tortillas (microwaving 4 at a time) and filling until you've used it all up.
Drizzle the sauce on top, and sprinkle with the remaining 1 cup of cheese. Bake, uncovered, until hot and bubbly, 20 to 25 minutes. Sprinkle with chopped green scallions and serve with desired toppings.
Notes
To make this recipe gluten-free: Use ¼ cup rice flour or GF all-purpose flour in place of the regular all-purpose flour. And be sure to use brands of vegetable broth and tortillas that are known to be GF (Guerrero is noted as GF).