i would suggest keeping the menu simple with it being a sports bar as people won't be expecting fine dining they will be there to enjoy the entertainment as well instead of just food, company, and drinks.
for starters i would suggest cold melon with accompanied fruit and coulis, chicken goujons with salad and choice of dip, potato skins filled with cheese and bacon and side salad, garlic bread with cheese and mushrooms is delicious!
for mains i would have a selection of salads available: caesar, tuna, greek, ploughmans etc; jacket potatoes with side salad and choice of filling, hawian burgers, chicken melts, steak pies etc
and desserts you can pretty much buy in frozen ready made from anywhere really take your pick
we're as good as our last meal.