When it comes to how much meat to put in a taco, there is no hard and fast rule. It really depends on how big the taco is and how much meat you want in it. A good rule of thumb is to start with about 2 ounces (56 grams) of meat per taco. This will give you a nice, hearty taco that is still easy to eat. Of course, you can always add more or less meat to your tacos depending on your preferences.