Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a large bowl, combine ground beef, breadcrumbs, egg, minced garlic, salt, and pepper until just incorporated.
Form the mixture into 1-inch meatballs and place on the prepared baking sheet.
Bake meatballs for 15 to 18 minutes until internal temperature reaches 160°F (71°C).
While meatballs bake, whisk ranch dressing, lime zest, and lime juice in a small bowl; refrigerate until serving.
In a small saucepan over medium heat, whisk honey, soy sauce, and ginger; bring to a light simmer.
Whisk cornstarch and water together to create a slurry, then stir into the sauce and cook for 1 to 2 minutes until thickened.
Toss the baked meatballs in the honey garlic sauce until evenly coated.
Garnish with green onions and serve immediately with the citrus ranch on the side.