Healthy Mac and Cheese

Name: Healthy Mac and Cheese
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: American
Ingredients: 250g (1 ½ cups) uncooked pasta (macaroni, penne, spirals etc); 400g cauliflower (approx. half a small cauliflower); 250g zucchini (2 medium); 2 Tbsp (30g) butter or your preferred oil; 2 Tbsp plain flour; 1 medium onion finely diced; 2 rashers of streaky bacon finely diced; 250 ml milk (1 cup); 125g grated cheese (1 cup)