Creamy Cajun Chicken Pasta

INGREDIENTS

1 lb

boneless skinless chicken breasts ((shrimp can be substituted))

2 tbsp

olive oil (, divided)

6 tsp

cajun seasoning (, divided (recipe in notes below))

12 oz

dry linguine or fettuccine pasta

2 tbsp

butter

1 clove

garlic (, minced)

3 tbsp

flour

1 1/2 cups

milk

1/2 cup

heavy cream or half and half

1/3 cup

shredded parmesan cheese

medium red bell pepper (, sliced into thin strips then strips halved (about 1 1/2 cups))

medium yellow bell pepper (, sliced into thin strips then strips halved (about 1 1/2 cups))

1/2

large red onion (, sliced into thin strips)

2 cups

sliced button mushrooms ((about 8))

Fresh parsley (, for garnish)