~ Add the onions, peppers, mushrooms and vegetable seasoning and sauté on medium-low heat for about 10-15 minutes, stirring occasionally.
~ Reduce heat to simmer and saute for another 10 minutes. Now is the perfect time to make the Alfredo sauce.
~ Mix in garlic powder, seasoning, milk and half the corn starch. Lastly, whisk in cheese and continue cooking until the cheese melts. If sauce seems thin, add more corn starch.
~ Remove from heat and allow sauce to thicken for about 5 minutes before serving.