Begin by preheating your oven to 400°F (205°C). Slice the baguette into 1-inch (2½ cm) thick pieces, lightly brushing each slice with olive oil. Bake for approximately 10 minutes until they turn crispy and achieve a gentle golden color. After removing the baguette from the oven, gently rub each warm slice with the cut side of the raw garlic clove, releasing its aromatic flavor.

Next, adjust your oven temperature to 400°F (205°C) to prepare your mushroom topping. In a skillet, combine your assortment of mushrooms—such as oyster, cremini, shiitake, and black oyster—with fresh thyme leaves. Sauté them until tender and aromatic, allowing the mushrooms to soften and release their moisture. Pour in the balsamic vinegar, sea salt, ground pepper, and lemon juice. Stir frequently, cooking until the mushrooms absorb the flavors, becoming tender and lightly caramelized.

Finally, spoon a generous portion of the savory mushroom mixture onto each toasted baguette slice. Serve immediately, garnished with fresh parsley for added color and freshness. Enjoy warm.