pasta with cauliflower in spicy pink sauce

Ingredients For pasta with cauliflower in spicy pink sauce

• 3 c

  tomato puree
• 1-1/2 c

  whipping cream
• 1/2 c

  freshly grated romano cheese
• 1/2 c

  coarsely shredded fontina cheese
• 2 Tbsp

  ricotta cheese
• 1 tsp

  crushed red pepper
• 1 tsp

  kosher salt
• 5 qt

  water
• 1

  head cauliflower, coarsely chopped
• 1 lb

  penne
• 3 Tbsp

  unsalted butter
• salt to taste