Thaw the frozen peas and drain off any extra moisture. Pat dry if needed.
Cook the bacon until crisp, then let it cool and chop it into small pieces.
In a large mixing bowl, add the mayonnaise, sour cream, sugar, seasoned salt, and black pepper.
Stir until the dressing is smooth and creamy.
Add the thawed peas to the bowl.
Add the diced red onion, chopped bacon, and shredded cheese.
Gently fold everything together until evenly coated in the dressing.
Cover and refrigerate for at least 30 minutes before serving.
Stir gently before serving and garnish with extra chopped bacon if desired.