Pasta with bean sauce | Clara Le

Ingredients

• 0.5 cup side-virgin olive oil
• 1 cup walnuts, finely chopped
• 0.5 tsp crushed red pepper flakes
• 5 garlic cloves — 1 whole, 4 thinly sliced
• 1 sprigs rosemary
• 1 can white beans
• 1.5 cup large tubular pasta
• salt
• 1 lemon
• 2 tbsp finely chopped parsley
• ground black pepper