Hummus with Spiced Summer Squash and Lamb

Name: Hummus with Spiced Summer Squash and Lamb
Ingredients: 2 (15.5-oz.) cans chickpeas, rinsed; 1 garlic clove, coarsely chopped; 1/2 cup tahini; 3 Tbsp. fresh lemon juice; 1 1/4 tsp. kosher salt; 2 tsp. kosher salt; 1 1/2 tsp. ground coriander; 11/2 tsp. ground cumin; 1/4 tsp. crushed red pepper flakes (optional); 2 Tbsp. extra-virgin olive oil, divided, plus more for drizzling; 1 lb. ground lamb; 3 garlic cloves, thinly sliced, divided; 1 lb. summer squash and/or zucchini, cut into 3/4 pieces; 1/4 cup chopped parsley or cilantro; Toasted pita wedges (for serving)