There are endless variations to matzoh brei. You can make it savory, as above, or sweet.
Making different-sized batches is easy: one egg per each matzoh cracker and season to taste.
Variations for savory: in addition to the salt and pepper, add a pinch of dried parsley, thyme or rosemary, or even a mixture of sauteed onions, mushrooms and herbs. This flavorful savory version can be used as a side dish similar to stuffing.
For sweet variations, omit pepper and add a teaspoon of vanilla extract and 1/4 teaspoon cinnamon. Serve with applesauce, a sprinkling of powdered sugar, grape jelly or some other kind of jam.
You could even go way off script and serve with hot sauce, though I don't think that's exactly traditional!