How to Make Vegetarian All-American Portobello Burgers

Portobello mushrooms stand in for meat patties in this recipe for veggie burgers with all the fixings. Mushrooms are a source of glutamate, a naturally occurring compound that gives the fungi their umami flavor. But to really give these "patties" a savory boost, we brush them with steak sauce. Add a simple side salad or some grilled veggies for a satisfying and easy dinner on the grill.

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"How to Make Vegetarian All-American Portobello Burgers"