Sunshine Pasta Salad

Sunshine Dressing:

1 cup mayonnaise

1 cup sour cream 

1/2 cup Dijon mustard 

Zest of a lemon 

1 tablespoon lemon juice 

1/2 teaspoon grated garlic 

1/2 teaspoon kosher salt 

1/2 teaspoon ground black pepper 

Salad:

1 pound penne pasta

Kosher salt

4 cups red grape tomatoes, halved 

4 cups yellow grape tomatoes, halved 

2 cups frozen sweet corn, thawed 

1 red bell pepper, seeded and cut into strips 

1 orange bell pepper, seeded and cut in strips 

1 yellow bell pepper, seeded and cut in strips 

One 16-ounce jar banana peppers, drained and sliced 

1 lemon, sliced, for garnishing