You’ll find plenty of restaurants specializing in Macanese (a mix of ethnic rural, Portuguese and Chinese cuisines) and Cantonese food; you can get dim sum for breakfast and lunch if you like. Wine is always included in all menus, no matter the size of the restaurant. A typically generous portion of dim sum here will cost you much less than it does in Hong Kong, even in smart venues.
You may not have pay more than MOP$250 per person for lunch at a smart restaurant, though extras such as water or crackers or bread on the side can add to the cost of a meal. A bottle of wine will set you back around MOP$120 in any restaurant. Apart from that, there are French patisseries, Portuguese food outlets, and a plethora of cafes selling short eats and junk food.