Method:
Steam spinach over broth or water. Place spinach, beans, lemon juice, tahini, garlic and salt in bowl of a food processor and process until smooth. You should have about 2 cups hummus.
Spread about 1/2 cup hummus on 1 tortilla, leaving about an inch from the edge. Arrange 1/4 each of sliced avocado, sliced cucumber and sliced bell pepper on top of hummus and tightly roll up tortilla. Repeat with remaining tortillas, hummus, avocado, cucumber and bell pepper. Holding tortillas firmly, carefully cut into 3/4-inch pinwheels and serve.