Heat the vegetable oil and sesame oil in a large skillet over medium-high heat.
Add the shiitake mushrooms once the pan is hot. Cook, stirring occasionally for 2-3 minutes. Add the garlic and ginger, stirring constantly for 1 minute.
Add the bok Choy, stock, soy sauce, and sriracha sauce. Cook, stirring occasionally, for 2-3 minutes, or until bok choy is wilted and coated in the sauce.
Pour into the serving dish. Top with green onions, if desired. Serve immediately. Enjoy.