Step 1

Preheat the oven to 350 degrees F.

Step 2

Bring a large pot of salted water to a boil.

Step 3

Add the pasta to the salted water and cook until al dente. Drain the pasta.

Step 4

In a 12-inch, oven-proof skillet over medium-high heat, heat the oil.

Step 5

Add the onion and the garlic to the oil and sauté, stirring, until fragrant, about 1 minute.

Step 6

Add the turkey and the steak seasoning to the onion mixture and cook, stirring frequently, until the turkey is browned on the edges, about 4-5 minutes. It may not be cooked through yet, but it will finish in the oven.

Step 7

Drain the skillet of fat.

Step 8

Add the canned diced tomatoes, the tomato paste, the mustard, and the relish to the ground turkey mixture.

Step 9

Reduce the heat to medium and stir until bubbling.

Step 10

Transfer the sauce mixture from the heat and stir in the drained pasta.

Step 11

Smooth the top of the casserole and cover with the cheese slices, cutting them as necessary to fit.

Step 12

Bake until the cheese is melted, the mixture bubbles, and the turkey is cooked through, about 23-25 minutes.

Step 13

Garnish with the diced tomatoes and sprinkle with the salt and the pepper.

Step 14

Serve.