1Fill a large pot with water and bring it to a boil.
Add the small red potatoes to the boiling water and cook for about 10 minutes.
Add the corn halves to the pot and continue boiling for another 5 minutes.
Add the crab legs and kielbasa sausage slices to the pot and cook for an additional 5 minutes.
In a small saucepan, melt the garlic butter over medium heat and add the minced garlic. Cook until fragrant, about 1-2 minutes.
Drain the pot and transfer the contents to a large serving platter.
Drizzle the garlic butter over the crab, potatoes, corn, and sausage.
Garnish with lemon slices and serve immediately.