Cut the recipe down so it will make one loaf. Determine the parameters of your bread machine. Determine the liquidity ratio of the recipe. Determine the overall bulk of the recipe. Reducing recipe size.
Most recipes tell how many loaves they make.
Some will tell the size of the loaf. Cut the recipe down so it will make one loaf. A rough judgement can be made by looking at the flour required. A 1 pound loaf requires about 2 cups of flour. Determine machine parameters.