TO MAKE THE RAVIOLI
To make the filling, place the pepitas in a food processor and pulse until finely ground. Add the pumpkin, ricotta cheese, roasted garlic, salt and thyme and blend until smooth. Adjust salt to taste.
To assemble the raviolis, work in batches by placing 5 won-ton wrappers on a work surface at a time. Keep the remaining wrappers covered with a damp cloth to keep from drying out.
Place 1 tablespoon of filling on the center of each won-ton wrapper. Moisten the edges of the wrapper by dipping your finger in water and running it along the edges of the wrapper. Place a second won-ton wrapper on top of the filling and gently seal the edges of the top and bottom wrappers, working to remove any excess air but keeping the filling in the center of the "ravioli".
Complete this process until you have 30 completed raviolis.
Place pepitas in a food processor fitted with a metal blade. Pulse until pepitas are finely ground.
TO MAKE THE PESTO
Add sage leaves and Parmesan cheese. Blend until sage leaves are finely chopped and cheese is incorporated.
With food processor running, slowly add the olive oil until pesto is well blended.
Pour half of the pesto on a serving platter and spread evenly. Reserve the remaining pesto.
TO COOK THE RAVIOLI
Bring 2 quarts of water to a boil and cook in batches of 5 at a time for 1 1/2 to 2 minutes, or until the raviolis are translucent and float.
Remove from water with a strainer and place on serving platter spread with Sage Pesto. Drizzle lightly with additional Sage Pesto and garnish with grated Parmesan cheese and whole pepitas.