You have a bunch of plants close together. This may impact your fruit size. If your raised bed has a bottom, that could limit the roots even further.
If you're watering every day, you may be watering too much.
In addition to that, my guess is you need more nitrogen and phosphorus. It's possible you need more potassium and magnesium, too, and a higher PH.
Roma tomatoes tend to have much broader, leafier-looking leaves than shown in your plants. The smaller leaves are possibly due to a phosphorus deficiency. I've personally seen rock phosphate make a huge difference in indoor Rocoto pepper leaves. However, this article also says that phosphorus helps with leaf size and the number of leaves. Nitrogen and magnesium should help your plants to become a darker green. Nitrogen is the most known nutrient that helps with growth. I wouldn't add more phosphorus than nitrogen unless you're particularly deficient in phosphorus, but not in nitrogen. Since you have bits of wood in your soil, you probably need nitrogen even more, because it takes nitrogen to decompose wood.
Phosphorus and potassium may help with fruit size, too. Potassium is most known for it, but I tend to think whatever you need more of is what's going to help. Get a soil test if you can. If your stems are weak (if they bend easily), you may need more potassium (potentially with calcium, too).
It's possible that you need better soil microbes. I've heard that they can affect fruit size (mycorrhizae in particular), and I know they can affect the leaf size (from experience trying to grow cucumbers/watermelon in sterilized soil, which plants had tiny leaves). Worm castings, composted horse manure (or such), rockdust and such should help you get good microbes in your soil. Rockdust doesn't contain microbes particularly, but microbes are said to like it. It's more of a long-term thing, though, I hear (rather than something to use for immediate results).
If your water is chlorinated (or such), it may be killing beneficial microbes. Watering less often would probably help, if you can't find another water source without chlorine.