Yes, just add the sauce above or the equivalent of your favourite pasta sauce, to a casserole dish, then place the frozen shells on the sauce. u003cstrongu003eBake uncoveredu003c/strongu003e at 200C/392F for about 30 minutes, making sure the shells are piping hot, then add the grated mozzarella and bake for another 5 - 10 minutes. u003cstrongu003eI don't recommend freezing this dish after cooking.u003c/strongu003e