Instant Pot Spaghetti, Vegan, Vegetarian Or Meat Based. If you are in a hurry and on a budget, this meatless meal can e prepared in under 30 minutes, for less than $10 and feeds a family of 6-8. Did I mention that it is literally the best spaghetti that I have ever had? So easy. This is also great if you have non meat eaters coming for the holidays. This meal does not disappoint.