Heat olive oil in a large skillet over medium-high. Add onion, carrot, celery, thyme and salt to skillet. Cook, stirring occasionally until vegetables are softened, about 8 minutes.
Stir in Worcestshire sauce, water and 1/4 cup ketchup. Remove from heat, let cool.
In a small bowl, stir together 1/4 cup ketchup and brown sugar for glaze and set aside.
In a large bowl, combine vegetable mixture with ground chuck, egg, breadcrumbs, salt and pepper. Mix with your hands until it's well-combined.
Line air fryer with foil and spray with nonstick spray
Place ground beef mixture onto foil and form into a loaf that's approx 8x4x2, packing firmly.
Curl up sides of foil to form a "pan" around the meatloaf.
** If you're adding potatoes - toss baby red potatoes in olive oil and salt and place around the meatloaf
Coat top and sides of meatloaf with ketchup/brown sugar glaze
Air fry for 30 min at 375 degrees. Test with a meat thermometer in the center and temp to 165.