Slice polenta into ¼” thick circles
Heat oil in pan over medium-high heat
Fry polenta slices until they are golden brown on both sides
Remove from pan, place on paper towel lined plate to rest
Sprinkle with kosher salt to taste
While polenta is frying heat marinara sauce in a small sauce pot
To serve, place fried polenta on a plate, top with dairy-free mozzarella and marinara sauce
Serve while hot