Creating the Crockpot Pierogi Casserole with Kielbasa is a breeze when following these simple steps:

1. Prepare the Ingredients: Gather all ingredients and have them ready for assembly.
2. Layer the Pierogi: Place half the frozen pierogi at the bottom of the crockpot.
3. Add Kielbasa: Layer half of the sliced kielbasa over the pierogi.
4. Add Onions: Sprinkle half the diced onion on top.
5. Add Cheese: Sprinkle half of the shredded cheese over the layers.
6. Combine Cream Mixture: In a separate bowl, mix the cream of mushroom soup, sour cream, and beef broth until well combined.
7. Pour Mixture: Pour the cream mixture evenly over the layers in the crockpot.
8. Repeat Layers: Add the rest of the pierogi, followed by kielbasa, onions, and cheese in the same order.
9. Season: Add salt and pepper to taste with each layer as desired.
10. Cook: Cover and cook on low for 4-6 hours or on high for 2-3 hours, until the cheese is melted and bubbly.
11. Serve: Once cooked, gently stir the casserole and let it sit for a few minutes before serving.
12. Garnish: Top with chopped green onions for an added touch of flavor and freshness.

By adhering to these steps, you’re well on your way to preparing this wonderful casserole without much hassle.