McDonald's, Pizza Hut go mini with Fish McBites, pizza sliders Fast-food giants McDonald's and Pizza Hut are thinking small after the Super Bowl, with new menu offerings that take after the small plates, tapas and portion-controlled craze. McDonald's this week is adding seafood for the first time to its Happy Meals with its Fish McBites. The seven small pieces of Alaska pollock - which are certified as sustainably sourced - contain 170 calories. The limited time offer will coincide with Lent, which begins next week, and is made with the same fish used in McDonald's Filet-O-Fish sandwiches. The Fish McBites are also available on the regular menu in other sizes. In another short-term promotion, Pizza Hut debuted pizza sliders following Sunday's football game. The mini-pizzas are 3.5 inches across, compared to the 6-inch diameter of a standard Pizza Hut personal pie. Customers can pick up nine sliders - with three combinations and up to three toppings each - for $10 or three for $5. Pizza Hut is giving away free samples of the small pizzas from 4 to 7 p.m. local time on Tuesday. The offerings come as customer appetites evolve toward variety and more manageable snack sizes. In March, research group Technomic found that 48% of consumers say they're snacking at least twice a day, compared with the quarter who said the same in 2010. Last year, McDonald's launched its Chicken McBites. Cake pops - bite-sized cake pieces delivered via lollipop sticks - have enjoyed a surge of popularity in recent years. "Pressure from the nutritional disclosure legislation has prompted the food-service industry to reduce calorie counts in meals," said Technomic Executive Vice President Darren Tristano in a statement. As a result, Americans are now more inclined to 'graze' throughout the day, seeking snacks that provide fuel between traditional meal parts. Jell-O sends free Super Bowl consolation pudding to 49ers fans Burger King says it never sold horse meat despite supplier issues Doritos to launch 'Taco Bell' chips inspired by Doritos Locos Tacos