Follow these simple steps to create your One Pan Kielbasa and Potatoes:

1. Preheat Oven: Preheat your oven to 400°F (200°C).
2. Prepare the Pan: In a large baking sheet or pan, combine diced potatoes, chopped bell pepper, and chopped onion.
3. Add Kielbasa: Add the sliced kielbasa on top of the vegetables.
4. Seasoning: Drizzle with olive oil and add minced garlic, paprika, oregano, salt, and pepper. Stir everything together until well-coated.
5. Spread Evenly: Spread the mixture evenly across the pan to ensure even cooking.
6. Bake: Place in the preheated oven and bake for 30-35 minutes, or until the potatoes are tender and golden brown.
7. Stir Occasionally: Halfway through cooking, stir the mixture to ensure even browning.
8. Finish and Garnish: Remove from the oven and let it sit for a few minutes. Garnish with chopped parsley if desired.

These steps will guide you in effortlessly preparing this incredible one-pan meal.