Step 1

Cook pasta in salted water according to package directions, reserving 1/2 cup of the cooking liquid. Drain well.

Step 2

While the pasta cooks, Brown and crumble the sausage in a large nonstick skillet. When no pink is left, remove it with a slotted spoon and set it on a paper towel-lined plate.

Step 3

Wipe skillet clean and add butter. Place over medium-high heat.When butter is melted, add onion and cook 3 minutes.

Step 4

Add garlic and cook 1 more minute.

Step 5

Sprinkle flour into skillet and cook and stir for 1 minute.

Step 6

Whisk in heavy cream and half-and-half. Bring to a simmer and then add Rotel tomatoes and diced tomatoes. Simmer for a few minutes.

Step 7

Add cream cheese and Mexican cheese and stir until melted.

Step 8

Add Cajun seasoning, salt and pepper.

Step 9

Return sausage to skillet. Add pasta and mix everything together. If skillet isn't big enough, transfer everything to a bowl to mix together.If sauce is too thick or the pasta is too dry, add in the reserved pasta liquid.

Step 10

Garnish with parsley and serve.