How to Make It
Heat a large skillet over medium-high heat. Add oil to pan; swirl to coat. Add onion; sauté 4 minutes or until almost tender.
Add sirloin; cook 5 minutes or until browned, stirring to crumble. Stir in chili powder, sugar, and salt; cook 1 minute, stirring constantly.
Add 1/4 cup water and tomato sauce; reduce heat, and simmer 2 minutes or until thickened.
Place chickpeas in a bowl; partially mash with a fork or potato masher. Stir chickpeas into sirloin mixture.
Spoon about 1/2 cup sirloin mixture onto bottom half of each bun; top each with 3 pickle chips and top half of bun.