Cajun Bacon Tuna Pasta Bake

rotini cooked al dente ((don’t overcook!))

olive oil

butter

red onion (, chopped)

red bell pepper (, chopped)

green pepper (, chopped)

garlic cloves, minced

red pepper flakes ((optional))

all-purpose flour

chicken broth, divided

milk ((I use lowfat))

Cajun seasoning

salt

black pepper

pieces cooked turkey bacon (crumbled, or regular)

diced tomatoes with green chilies, drained

petite frozen peas, thawed

can StarKist® Albacore Tuna (, drained)

Parmesan cheese

Mozzarella cheese

sour cream ((optional))

(+ 3 tablespoons) cheddar cheese (, divided)

panko breadcrumbs