For the pasta and shrimp
01 -
12 oz (340 g) penne pasta
02 -
1 lb (450 g) large shrimp, peeled and deveined
03 -
2 tablespoons Cajun seasoning, divided
04 -
1 tablespoon olive oil
05 -
1/2 teaspoon kosher salt, plus more for pasta water
06 -
1/4 teaspoon black pepper
For the sauce
07 -
2 tablespoons unsalted butter
08 -
1 small yellow onion, diced
09 -
1 red bell pepper, thinly sliced
10 -
1 green bell pepper, thinly sliced
11 -
4 cloves garlic, minced
12 -
1 cup (240 ml) heavy cream
13 -
1/2 cup (120 ml) chicken stock or seafood stock
14 -
1 can (14.5 oz / 411 g) fire-roasted diced tomatoes, drained
15 -
3/4 cup (75 g) freshly grated parmesan cheese
16 -
1/2 cup reserved pasta water, as needed
17 -
1 tablespoon fresh lemon juice
18 -
2 scallions, thinly sliced
19 -
2 tablespoons chopped fresh parsley