Breakfast there's normally wide choice with english breakfast, freshly made pancakes with nutella or similar, lots if fresh fruit, croissants, breads etc, fruit juices, hot chocolate, tea, coffee.
Generally 24/7 snacks available, normally burgers and hot dogs
Lunch buffet with things like salads, burgers, hot dogs, sometimes eaten by pool, lots of fizzy drink, very cheap wine. Normally you hear the entertainment music and something like water volleyball or beach volleyball is on as entertainment or yoga aqua aerobics, later its bingo or quizzes with a prize of something like prosecco.
Evening meal, can be restaurant service and normally themed like Italian, Spanish, Indian, Greek and you chose on arrival and make you reservation on a sheet. Or can do another buffet a bit fancier than lunch one.,
Unlimited drinks including cocktails with almost no alcohol in them. Towels made in towel swans in bedroom. Disco in evening or loud music and quiz,
Could also decorate or try to create trips out. If you know hotel look on their website for clues