Cauliflower Bolognese

Ingredients (15)

• 1  small head cauliflower
• 2  tablespoons butter
• 1  cup chopped yellow onions 
• 3 cloves garlic
• 2  28 oz cans whole plum tomatoes in thick puree
• 1/2  cup red lentils 
• 3 tablespoons balsamic vinegar
• 1 teaspoon sugar
• 1/2 teaspoon minced fresh thyme
• 1/4 teaspoon dried basil
• 1/4 teaspoon dried oregano
• Dash of crushed red pepper
• Kosher salt and black pepper
• 1 lb  spaghetti or other pasta
• Chopped fresh basil and grated Parmesan cheese