01 - Preheat oven to 400°F. Arrange diced zucchini and diced bell pepper on a baking tray, drizzle with olive oil, and roast until vegetables are tender, about 15 minutes.
02 - Bring a large pot of salted water to a boil. Add whole wheat macaroni and cook until al dente according to the package instructions. Drain the pasta thoroughly.
03 - Heat a skillet over medium-high heat. Add lean ground beef and cook, breaking up any large pieces, until beef is evenly browned. Drain off excess fat.
04 - Add roasted vegetables, drained macaroni, tomato sauce, and herbes de Provence to the skillet with the beef. Stir well and simmer gently for 5 minutes to meld the flavors.