An old favorite here at our house, even when it's not a holiday, Matzoh Brei! And I have a lot of matzoh left over. You can serve it plain or with preserves, fresh fruit, cinnamon sugar or syrup. You can make it savory by adding garlic, sauteed mushrooms, onions, herbs, spinach, whatever you like. You can even add cheese, brie is nice, and then it would be called Matzoh Brei with Brie :)
Source: There's Always Thyme to Cook
4 matzohs, broken in small pieces
1 cup hot water
3 eggs, beaten
Salt and pepper to taste
3 tablespoons butter
Break matzoh into pieces in a large bowl. Pour hot water over matzoh and stir to allow it to absorb some of the water.
Drain matzoh in a strainer and leave in strainer. To the bowl, add eggs, salt and pepper and beat gently with a whisk. Stir in the matzoh to combine.
Heat butter over medium heat in a large pan. Add matzo mixture and fry on one side until bottom is golden brown and crisp. Flip matzoh and fry the other side. If you want it "scrambled" instead of a "pancake" style, stir it around and break up the clumps.
Remove from heat and serve immediately.