Place the lettuce, tomato, cucumber, red pepper, and green onions in a large bowl.
Add the parsley and mint. Squeeze the lemon juice around the bowl, carefully holding your opposite hand underneath to catch the seeds. Grate the garlic directly over the salad using a grater or rasp. Drizzle the olive oil around the edge of the salad, this will help ensure the salad is dressed evenly as you toss. Using your hands, gently toss the salad together. Sprinkle with za'atar, salt and pepper to taste.
Cook's Note: My secret ingredient is a bit of za'atar, a Middle Eastern spice blend of toasted sesame seeds, dried thyme, dried marjoram, and sumac. It mixes perfectly with the fresh garlic, mint, lemon and olive oil. This recipe is extremely versatile-just use whatever veggies you have on hand!