A sandwich like this could be laden with fat, but there are a few things you can do to change that. First, slice the bread thin--though many breads contain no fat, some sun-dried tomato breads are made with olive oil. Then skip any butter and instead make a zesty garlic spread with low-fat mayonnaise. Use only a few slices of avocado, which is high in fat, per sandwich. And make the filling a mix of fresh vegetables for a variety of flavors and textures.
You’ll wind up with a sandwich that’s light and substantial.
It’s fun to experiment with different sandwich breads, because good, fresh bread can make all the difference. I especially like the sun-dried tomato bread made in the bakery of my local Pavilions grocery store.