Fast-food chains, from Popeyes to Subway, have been turning up the heat. Now McDonald’s is spicing up its breakfast menu.

McDonald's turns up the heat up with a new twist on McMuffins. Is it the wake-up call we desperately need, or should we hit ...

McDonald's introduces spicy pepper sauce to its McMuffin line as it celebrates the 50th anniversary of the iconic Egg ...

A new entree option. A returning fan-favorite. A sweet little treat. A spicy breakfast sandwich. They’re all on a McDonald’s ...