1: Drain your can of tuna.
2: Dice your veggies including red bell pepper, cucumbers, red onion, and green onion.
3: Whisk together Greek yogurt, olive oil, apple cider vinegar, Dijon, maple syrup, salt, and pepper to make the dressing.
4: Assemble salad by mixing the chopped lettuce, veggies, tuna, feta, and dressing.