Falafel with Avocado Spread

Name: Falafel with Avocado Spread
Ingredients: For the patties; 1 (15-ounce) can pinto beans, drained and rinsed; 2 ounces (approx. 1/2 cup) shredded Monterey Jack cheese; 3/4 ounce (approx 1/4 cup) finely crushed baked tortilla chips; 2 tablespoons finely chopped green onions; 1 tablespoon finely chopped cilantro; 1/8 teaspoon ground cumin; 1 large egg white; 1 1/2 teaspoons canola oil; For the spread; 1/4 cup mashed peeled avocado; 2 tablespoons finely chopped tomato; 1 tablespoon finely chopped red onion; 2 tablespoons fat-free sour cream; 1 teaspoon fresh lime juice; 1/8 teaspoon salt; Remaining ingredients; 2 (6-inch) pitas, each cut in half crosswise; 4 thin red onion slices, separated into rings; Microgreens (optional)