Golden Topped Pasta

8 oz dried pasta shells or spirals (or whatever)
2/3 c. chopped ham, beef, or turkey
12 oz frozen mixed vegetables
a little oil
2 Tbsp butter
2 Tbsp flour
1 1/4 c. milk
1 1/2 c. grated cheddar cheese (divided)
1-2 tsp. mustard
salt & ground black pepper

Preheat oven on broil. Heat vegetables according to package directions. Cook pasta according to package directions. Reheat meat if needed. Drain and place pasta, vegetables, & meat in casserole. Stir in 1-2 tsp oil. Melt the butter in a saucepan, stir in the four & cook 1 minutes, stirring. Remove from the heat and gradually stir in the milk. Return to the heat, bring to a boil, stirring, and cook for 2 minutes. Add half the cheese, the mustard, & seasoning to taste. Spoon the sauce over the meat, vegetables, & pasta mixture. Sprinkle with the rest of the cheese and broil quickly until golder & bubbling.