Scalloped Potatoes with crumbs

3 pounds potatoes all purpose 1 1/2 cups milk 1/3 cup flour, all-purpose 1 cup cream, half and half 3/4 cup water 1 each vegetable stock package, powder form[...]

2 tablespoons olive oil 1 lb bulk Italian sausage 2 onions , thinly sliced 1 large red bell pepper , seeded and cut into 1/3 inch strips 1 large green bell[...]