Preheat oven to 425°F (218°C). Spread tater tots in a single layer on a baking sheet and bake 28 minutes, turning halfway, until golden and crispy.

Let tots cool slightly. Thread 4–6 tots onto each skewer, keeping them snug but not squished.

Place skewers on a parchment-lined sheet. Sprinkle with cheddar, bacon bits, and half the green onions.

Bake 5–7 minutes until cheese melts. Top with remaining green onions and serve with sour cream.