Lunch is available from Monday to Friday a. . Seafood buffet should be on your list to try if it isn't already. The M Resort Casino is a little out of the way, but the lunch buffet is awesome. m. Children four years and younger eat free. Crab legs galore. The Sunday brunch buffet at Anthony's Prime Steak & Seafood at the M Resort is one of the best in Las Vegas. There is something for everyone! I have also eaten breakfast in the cafe, and. costs $ for adults and $ for children. ( IG: @holee_chan). to p. SUNDAY BRUNCH BUFFET MENU · SUNDAYS • 11AM - PM · DAILY • 5PM - 6PM. m. From classic burgers, pastries, all-you-can-eat sushi and our award- winning buffet and steakhouse, you'll find plenty to enjoy at M Resort Casino · Casino. m resort las vegas lobster buffet.