Pasta in white sauce

Ingredients Pasta: 1 cup Onion: 1 big Chicken sausage: 1 Mixed vegetables: ½ cup Butter: 2 tbsp Salt: needed Grated cheese: for topping For white sauce: Butter: 1 tbsp Flour: 1 tsp Milk: 1 cup (or as per consistency) Salt: needed Pepper powder: to taste Method of Preparati..