OK, so here is my dilemma (at least for me who doesn't cook too much). I'm making a meatloaf tonight that cooks on 325 degrees for 1 hour 30 - 45 minutes. I'm also making baked potatoes, but don't these have to cook on a much higher temp - like 425?? Should I just put the potatoes in right when I put the meatloaf in? I'm planning on coating them with oil and salt (pierce them of course) but do I put aluminum foil around them?? Thanks in advance!!