For the easiest pub style meal make yourself bangers and mash with gravy, I make this fairly regularly, you will need:
Potatoes suitable for mashing
Onions (say 4 large ones for 2-3ppl red ones are good too)
proper sausages, not that frank crap
some white wine or beer (proper ale, not bubbly lager)
whole grain mustard
Place a fairly decent chunk of butter ( I use about 1/5 or so of the standard pack we get here) at the bottom of a deep pan and heat it, dump in chopped onions and fry them till translucent but not caramelised, then drop the temperature to fairly low and let them chill like that for a bit, add the sock (premixed in whatever proportions are recommended), some of your beer or wine, some mustard, season to taste and let that all simmer for a few hours, the longer the better it should reduce and give you a nice thick gravy, taste and adjust seasoning/mustard/stock whenever.
Simply cook the sausages however you like - grill is healthiest, pan probably tastes best, you are usually told not to pierce them as it keeps the flavour in but sometimes they pop if you don't so whatever you feel like.
Boil potatoes peeled or not depending on taste, then mash with some milk or cream, a bit of cheddar cheese or even some diced chives if you are feeling pretentious.
bang it all on a plate, pour on gravy and serve with green beans or whatever, and beer, proper ale or bitter.