Bulgur wheat is similar in texture to couscous, and it is often used in traditional Middle Eastern dishes such as tabbouleh and kibbeh. Here, it gets tossed with some tomatoes, squash, and zucchini for a healthy salad that's nearly a complete meal.
In a large bowl, stir together the bulgur and boiling water. Cover and let stand until the liquid is absorbed, about 30 minutes.
Meanwhile, grate 1 teaspoon peel and squeeze ¼ cup juice from the lemons and set aside.
In a 12-inch nonstick skillet, heat the oil over medium-high heat until hot. Add the onion and cook until beginning to soften, 3-4 minutes. Add the tomatoes, squash, and zucchini. Cook until the vegetables are tender, 6-8 minutes, stirring occasionally.
Stir the vegetables into the bulgur with the lemon peel and juice, mint, parsley, salt, and pepper. Spoon the mixture into a container with a tight-fitting lid. It can be refrigerated up to 1 day.