Falafel Pita Sandwich with Tahini Sauce

Ingredients (13)

• + 12 frozen falafel add to pantry
• + ¼ cup tahini add to pantry
• + ¼ cup water add to pantry
• ✓ 2 tablespoons lemon juice
• ✓ 2 cloves garlic, minced
• + ¼ teaspoon ground paprika add to pantry
• + 6 whole wheat pitas add to pantry
• + 1 head lettuce, shredded add to pantry
• + 1 tomato, cut into thin wedges add to pantry
• + ½ cucumber, peeled and sliced add to pantry
• + 1 low-sodium dill pickle, sliced add to pantry
• ✓ ¼ small red onion, thinly sliced
• + 3 teaspoons harissa, or to taste add to pantry