Sandwiches.

Irish beef stew with bread.
Vegetarian: Lentil, kale and potato stew with bread.
Dessert: Sticky toffee pudding with sauce and cream.

Breakfast rolls with bacon, eggs, hash browns and sauces.
Vegetarian: Subtract bacon.

Sandwiches.
Other suggestions are welcome, preferably something that doesn't need heat.

Burger and chips.
Vegetarian: Beyond burger patties.
Dessert: Fruitcake with custard.

Pancakes with fresh fruit, butter, whipped cream and maple syrup.

All times are targets, this is not a professional operation :).
Breakfast: 09:00-10:30
Lunch: 13:00-14:30
Dinner: 19:30-21:00