Instructions: Place the basil, walnuts, and garlic in the work bowl of a food processor or in a blender. Process, scraping down the sides as needed, until the ingredients are finely chopped. With the motor running, slowly pour the oil through the feed tube and process until smooth. Scrape the pesto into a large bowl. Stir in the salt and pepper and set aside briefly while cooking the beans.

Bring some water to a boil in a steamer pot. Place the beans in the top part of the steamer and cook until tender, about 6 minutes. Let any water drip from the beans and then place them into the bowl with the pesto.

Toss gently and adjust the seasoning, if necessary.

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