Balsamic Roasted Sausage and Grapes with Linguini

One of our more unique pasta recipes!  

Balsamic Roasted Sausage and Grapes with Linguini

3/4 cup Sweet Italian sausage
3/4 cup Hot Italian sausage
3 cups Seedless red grapes
1/4 cup Balsamic vinegar
2 tbsp. Oil
2 tbsp. Water
1/2 tsp. Salt
1/2 tsp. Pepper
1 lb. Linguini -- cooked according to package -- reserve 1/2 cup pasta water
1/2 cup Pesto
1 bag Spinach salad mix

Place the sausage and grapes in a greased 9 x 13 pan. In a small bowl, combine vinegar, oil, and water. Pour over sausages. Sprinkle with salt and pepper. Bake at 450 degrees for 20 minutes. Turn sausages and bake for 10 more minutes. Allow sausages to cool, and then slice. In a large bowl, combine the linguini, pasta water, and pesto. Toss to coat. Add remaining ingredients, including pan juices.