Cauliflower Tabbouleh with Almond Tahini Sauce

Name: Cauliflower Tabbouleh with Almond Tahini Sauce
Ingredients: 1/2 medium head cauliflower (roughly chopped into florets (discard core)); 1 1/2 cups parsley (finely chopped); 1/2 cup mint (finely chopped); 2 tomatoes (seeded and diced); 1/2 large cucumber (seeded and diced); 1 tablespoon lemon juice; 3/4 teaspoon salt; 1/4 teaspoon pepper; 2 tablespoons tahini; 1 tablespoons almond butter; Juice of 1/2 lemon; 1 clove garlic (minced); 1/4-1/2 cup unsweetened almond milk; Pinch of salt; Romaine leaves (for serving (optional))