Seems that we are experiencing quite a few lazy days recently. =/ And this is really hubby's definition of quick dinner!
Anyway, this is usual answer to the "What's for dinner? And by the way, there's nothing much in the fridge" situation. This is one of my creation which I have used many times without fail as this dish is really very very accomodating. Just stick to the basic principle and it will be alright.
Basic princple: Fry onion in olive oil till tender, add major ingredients (for tonight's dinner was leek and mushrooms) and fry till tender/cooked. Pour a jar of spaghetti sauce over it and heat through. Spead a thin layer of the sauce on the base of the baking dish. Spead a layer of cooked pasta (your choice) and follow by a layer of sauce and then shredded moz cheese. Repeat layer and end with sauce and moz cheese on the top. Bake in a moderately hot oven till cheese has melted and turns brown.
Tonight I have actually used my food processor to do the prep work and, boy, that machine works wonders! Onions and leeks are chopped in under a minute. Mushrooms are sliced in almost the same time. Moz cheese shredded faster than I could type mozzerella! The fine and even shredded moz cheese produce a nice even layer of crust when melted. No uneven cheese lumps dotting my baked pasta.
Yummy comfort food for the sleepy and tired souls.