In a large mixing bowl, add thawed frozen sweet peas, chopped hard-boiled eggs, crumbled bacon, sliced green onions, and shredded cheddar cheese. Fold gently to mix.

Sprinkle with black pepper, salt, garlic powder, and celery seeds or chopped celery. Optionally, add cayenne pepper and stir gently.

In a small bowl, whisk together mayonnaise and sour cream until smooth and creamy.

Pour the creamy dressing over the pea mixture and gently fold it in until well-coated.

Cover with plastic wrap and refrigerate for at least one hour to meld flavors.

Before serving, stir gently, taste and adjust seasoning if needed.