Total time: 20 minutes
Servings: 12 to 16
1 (15 ounce) can garbanzo beans, drained
2 (15 ounce) cans black beans, drained
2 tablespoons extra-virgin olive oil, more to taste
1/4 cup chopped garlic, more to taste
3 tablespoons tahini paste
1 lemon, juiced, more to taste
1 1/2 cups water, more...