Presto:

Combine all ingredients in a Cuisinart. Puree until rough-even mixture. Reserve (can be made and kept under refrigeration for up to 2 months if covered with oil).

Alfredo Sauce:

In medium sauce pan melt butter, add garlic and onions. When onions are soft add heavy cream. Bring to slow boil stirring constantly. Reduce cream by half over low heat. When reduced add cheese. Hold warm until raviolis are cooked.

Raviolis:

In large pot bring water to boil. Add salt and 2 tablespoons oil. Add raviolis. Cook until raviolis are aldente (firm to teeth). Drain in colander. In medium sauce pan heat remaining olive oil. Add pesto. When hot add raviolis. Toss.

Place alfredo sauce on plate. Add raviolis (4 each flavor per plate). Garnish with shredded parmesan cheese.