1. In a large bowl mix all the above ingredients until well blended, except the mushroom caps. (The quantity will depend on how many people you need to feed and what else you have with the Mushroom filled Meatball Caps as part of the meal).
2. I used 10 medium white mushrooms for 2 adults as the main meal and only added mixed vegetables.
3. Wash the mushrooms and break out the stems (chop them into small pieces) and add that to the above mixture.
4. Use a muffin pan and place the caps in the cavities, scoop out enough of the meatball mixture in the palm of your hand, and form a small ball and place it inside the mushroom cap.
5. Heat the oven to 400F and once the oven is heated, place the pan in the oven on the middle shelf and bake for ± 30-45 minutes, depending on the size of the mushrooms and the number of mushrooms used until browned and baked through.
6. The time may also vary depending on your oven.
7. Serve with mixed vegetables.

**Note:

1. You will not use all the meat for 10 mushrooms (as I used).
2. The rest I baked in a regular baking dish and will use that with Fettuccine Aglio e Olio (Fettuccine with Garlic and Oil) for our next evening meal.
3. You can also bake the remainder of the meat in a tinfoil container and then freeze it for later use.
4. I will not suggest that you refreeze the meat (if already been defrosted once).