Using fresh chard leaves in place of the usual basil is a great way to enjoy the classic sauce year-round. You could also try spooning the pesto over squares of pan-browned polenta instead of pasta.
2 large garlic cloves
2 cups packed chopped Swiss chard leaves
1/2 cup chopped walnuts
1/4 cup freshly grated parmesan cheese, plus parmesan shaved with a vegetable peeler
1/4 cup flat-leaf parsley leaves
1/4 cup olive oil
1/2 teaspoon salt
1/4 teaspoon pepper
6 ounces whole-wheat angel hair pasta, cooked according to package directions
How to Make It
Pulse garlic in a food processor to chop. Add chard, walnuts, grated parmesan, and parsley; whirl until finely chopped. Scrape down inside of bowl. Add oil, salt, and pepper and process just until smooth. Serve with pasta and shaved parmesan.