01 - Preheat oven to 375°F. Line a baking sheet with parchment paper or lightly grease a loaf pan.
02 - In a large bowl, gently mix ground turkey, onion, garlic, egg, breadcrumbs, milk, ketchup, Worcestershire sauce, thyme, salt, and pepper until just combined.
03 - Shape mixture into a loaf on the prepared baking sheet or press evenly into the loaf pan.
04 - Whisk ketchup, brown sugar, Dijon mustard, and apple cider vinegar in a small bowl.
05 - Spread half the glaze over the meatloaf. Bake for 40 minutes at 375°F.
06 - Remove from oven, spread remaining glaze atop, and bake for 15 more minutes until internal temperature reaches 165°F.
07 - Boil salted water, add green beans, cook 3 to 4 minutes until bright green and crisp-tender. Drain and rinse under cold water.
08 - Heat olive oil in skillet over medium heat. Sauté garlic for 30 seconds if using, then add green beans and toss. Season with salt and pepper.
09 - Let meatloaf rest 10 minutes before slicing. Serve alongside green beans.