Preheat the oven to 350°F.
Roast the pumpkin seeds until just fragrant, about 5 minutes.
Remove from the oven and allow to cool.
Chop the dandelion greens.
Put the pumpkin seeds and garlic in a food processor.
Pulse the garlic and pumpkin seeds together until very finely chopped.
Add the greens to the food processor.
Add Parmesan cheese, hot peppers, salt, oil, and lemon juice. Then process continuously until combined.
Stopping the processor when needed to scrape the sides, adding more oil if needed.
Add salt and pepper to taste.