01 - Preheat oven to 375°F. Line a baking sheet with parchment paper or foil.
02 - Heat olive oil in a skillet over medium heat. Sauté onion until soft, about 3 minutes. Add garlic and cook 1 minute more. Let cool slightly.
03 - In a large bowl, combine ground turkey, sautéed onion and garlic, breadcrumbs, milk, egg, ketchup, Worcestershire sauce, salt, pepper, and thyme. Mix until just combined; do not overmix.
04 - Shape mixture into a loaf about 8x4 inches on the prepared baking sheet.
05 - In a small bowl, mix together ketchup, brown sugar, Dijon mustard, and apple cider vinegar. Spread half the glaze over the meatloaf.
06 - Bake for 30 minutes. Remove from oven, spread remaining glaze over the top, and return to oven.
07 - Bake an additional 15-20 minutes, or until the internal temperature reaches 165°F. Let rest 5-10 minutes before slicing.
08 - Bring a pot of salted water to a boil. Add green beans and cook 2-3 minutes until bright green and crisp-tender. Drain and transfer to a bowl of ice water to stop cooking. Drain well.
09 - Heat olive oil in a skillet over medium-high heat. Add green beans, season with salt, pepper, and garlic. Sauté 2-3 minutes until heated through.
10 - Serve meatloaf slices with green beans on the side.