
Whisk together all the lemon vinaigrette ingredients in a small mixing bowl. Season with salt, pepper, and crushed red pepper flakes to taste. Reserve.
In a large salad bowl, combine the greens, tomatoes, red onions. Pour the vinaigrette over the salad, tossing to combine. Divide the greens into the base of four bowls.
Top each bowl with 2-3 cooked falafels, feta cheese, and olives. Add a dollop of mustard hummus to each bowl.
Serve immediately with pita bread or chips, if desired.