Whole-Wheat Spaghetti with Swiss Chard and Pecorino Cheese on BakeSpace.com

Ingredients

• 1 tablespoon olive oil
• 2 onions, thinly sliced
• 2 bunches Swiss chard, trimmed and chopped (about 14 cups)
• 3 garlic cloves, minced
• 1 (14 1/2-ounce) can diced tomatoes with juices
• 1/4 cup dry white wine
• 1/4 teaspoon dried crushed red pepper flakes
• Salt and pepper
• 8 ounces whole-wheat spaghetti
• 1/4 cup pitted kalamata olives, coarsely chopped
• 2 tablespoons freshly grated Pecorino cheese
• 2 tablespoons toasted pine nuts