Can I make a pie in a glass dish?

My BF told me he had pie pans. I’ve searched the entire kitchen, and I give up!

I have 3 clear-glass casserole dishes. Two of them are 8×8 inches, and I think the other is 9X12 (it doesn’t say on the bottom). Will my pie/s turn out just as good this way?

I wanted to make two pies, so should I use the one big on or the two small ones? Also, do I need to grease the bottom (the crust will have tons of Crisco in it).

Thanks to everyone in advance!