Heat a soup pot over medium heat and cook bacon until crispy, about 5-7 minutes, turning once halfway through. In the meantime, mince garlic. When bacon is crisp, remove from pot and set aside. Remove pot from heat and sauté the garlic in the bacon grease for about one minute, then carefully add the milk and water. Bring to a boil and add the pasta, peas, salt, and pepper. 

Cook until pasta is done, about 12-15 minutes. Stir frequently towards the end of the cooking time so that the pasta doesn't stick as the liquid boils down. You'll know it's done when the pasta is soft and the liquid is pretty much gone. Remove from heat and stir in cheese and bacon (crumbled). You can reserve a little of each for garnish if desired. Serve hot and enjoy!