Photo from Real Simple
This is a great recipe from RealSimple.com that is light and healthy for the Spring and Summer.  You could substitute dried cranberries for raisins and add lemon zest, as well, if you like.

Cooking Preparation Time: 15 Minutes
Cooking Time: 5 Minutes
Cooking Difficulty Level: Easy

Ingredients:
 
1    Package Spaghetti
3    TBsp Olive Oil
1/2 Cup Walnuts, chopped
4    Cloves Garlic, pressed or minced
4-5 Small Zucchini, sliced in half, then chopped
Salt
Pepper
1/4 Cup Parmesan Cheese


Directions:
  1. Cook the pasta according to the package directions. 
  2. Drain and return pasta to the pot.
  3. Heat the oil in a skillet over medium-high heat. 
  4. Add the walnuts and cook, stirring frequently, until beginning to brown, 3 to 4 minutes.
  5. Add the garlic and cook, stirring frequently, until beginning to brown, about 1 minute.
  6. Add the zucchini and and season with ½ teaspoon salt and ¼ teaspoon pepper. 
  7. Cook, tossing occasionally, until the zucchini is just tender, 4 to 5 minutes.
  8. Add the zucchini mixture to the pasta and toss to combine. 
  9. Sprinkle with the Parmesan before serving.
Serving Size: 1/2 Serving