In a pan, add oil, garlic and onions. Sauté for a few minutes on medium heat until the onions are lightly cooked and the garlic is fragrant.
Add sesame oil and mushrooms. Let cook until the mushrooms are light golden brown in colour.
Add the sriracha, vinegar, soy sauce, hoisin sauce, salt and pepper. Cook for about 2 minutes on medium heat until the mushrooms are caramelised.
Add the uncooked maggi/ ramen noodles and water. Cook on high until the noodles are completely cooked.
Add spring onions and mix well. Cook for additional one minute.
Transfer to serving bowls. Sprinkle some sesame seeds and serve.