I agree with the others... as long as the ground is not frozen - you can rake the leaves back and lightly cultivate the top soil with your leaf rake and it flufs up a bit - you should be good to plant seed.
Just make sure you get them coverd up good and I always walk up and down my beds after raking the leaf mulch and leaves back on - to press the leaves down on the seed, and the seed into the fluffed up soil. That makes sure they get good contact with the soil, and helps to keep your leaves from blowing off too.
I have not tried starting any indoors, but I would think like the others - you would be better off planting them outdoors and let the natural thing happen.
Best of Luck !
TNhunter