You can peel it before freezing but you don't have to. It is actually easier to remove the skins after the fruit is frozen. Just rub it off under running water before you thaw them or add them to soups or stews.
To peel them first, dip them into boiling water for 1 minute to burst the skin. Use a slotted spoon to remove the tomatoes from the hot water and set them aside to cool. When they are cool enough to handle, peel the skin away with your clean fingers.
Remove the stem scar with a paring knife. If you want to dice the fruit, now is the time to do it.
Spread the fruit evenly over a greased cookie sheet and pop it into the freezer until it is frozen solid. Then transfer it from the cookie sheet to a plastic bag or container. This way each tomato will be separate. You can remove as many or as few as you need.
Treat diced tomatoes the same way. Later, you'll be able to break off as much as you want to use.
This is a good way to save the fruit until you have enough to make a pot of sauce. Although home garden Roma tomatoes are determinate tomatoes which are said to ripen all at once, in actuality they don't ripen on the same day just within the same time frame.
Roma Tomato Growing Tips: It takes about 6 plants to yield enough fruit for cooking or canning Roma tomatoes.
Growing Roma Tomatoes
Growing Roma tomatoes. How to grow tomato Roma. Roma bush tomato plants, seeds and growing tips. Roma tomato diseases.
Planting tomatoes in the ground or in buckets. Tomato planting instructions for growing tomatoes in containers or an upside down tomato planter.