Treat yourself to this amazing Portobello Mushroom and Halloumi Burger recipe! Learn how to make these yummy Halloumi Burgers with Portobello mushrooms, quick tomato sauce, and pickled onions. This Halloumi Sandwich is a fun, creative twist on the Veggie Burger. Make this delicious vegetarian Halloumi recipe for a healthy lunch or dinner! | Hello Little Home #halloumi #halloumirecipes #halloumicheese #halloumiburger #veggieburger #vegetarian #vegetarianrecipes #portobelloburger