Cauliflower Spinach Dip

Name: Cauliflower-Spinach Dip
Ingredients: 4 cups cauliflower florets; 2 cups lightly packed spinach leaves; 2 tablespoons tahini; 2 tablespoons fresh lemon juice; 3 tablespoons extra-virgin olive oil; 1 coarsely chopped small garlic clove; Salt and pepper; Pita bread or crisps, for serving