In a large salad bowl, add the lettuce, cucumber, fennel, pepper, radish, orange, onions and fronds. Toss until well combined.
Make the Dressing: In a small bowl, add the tahini, orange juice, apple cider vinegar, water, mustard, maple syrup, salt and pepper. Whisk until well combined and creamy.
Pour about ½ the dressing on top of the salad, and toss until evenly coated.
Store the leftover salad in an airtight container in the refrigerator and consume by the next day. Store leftover dressing in a glass jar in the refrigerator for up to 3 days.