Step 1

Preheat the oven to 350 degrees F.

Step 2

Cut the squash into cubes and place in the casserole dish.

Step 3

Drizzle with oil and roast for 15-20 minutes (or until it begins to soften).

Step 4

While the squash is roasting, cook and drain the pasta according to directions.

Step 5

In a small bowl, whisk the yogurt, garlic, salt, and pepper together with 1 Tbsp of warm water until smooth.

Step 6

Pour the yogurt sauce and pesto into the drained pasta and mix.

Step 7

Add the chicken, tomatoes, and pasta mixture into the casserole dish and mix.

Step 8

Top with shredded mozzarella and crushed walnuts.

Step 9

Bake for about 20 minutes, or until everything is warm and the cheese has melted.

Step 10

Serve and enjoy!