Put the first 6 ingredients in the food processor and process until it becomes a paste, scraping down the bowl with a spatula from time to time. Add 1/2 cup of olive oil and stir until you reach the desired consistency; more can be added to taste.
Cook the pasta in 3 liters of boiling water with 2 tablespoons of salt, 5 minutes before the pasta is ready, add the broccoli.
Drain and transfer to a serving dish, and if desired, add butter while gently stirring, add a bit of pesto, mix, and serve hot.
Nutritional Information
* * Information per 100g serving, percentage of daily values based on a 2,000 calorie diet.
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