For those following a low-carb diet like keto ... with a portobello mushroom burger recipe — though sandwiching your portobello patty in between two portobello buns may be a bit of a 'shroom ...

They're high in protein and low ... make a burger at home, how about swapping regular buns for high-protein lentil buns? As we all know, burger buns are usually prepared with maida, making them less ...