What to make for dinner tonight?

So I wanted to put chicken, potatoes, vegetables in a crock-pot to eat with brown rice for dinner tonight, but I got up too late to chop up everything. I wont get home until 4 and Ill be at the gym from 6 to 7:30. Can I cook the food on high to be ready when I get home? I also cant bake it because I don't have a casserole dish. BTW this is the only food I have until Friday when I get paid and can go grocery shopping. =( damn student income.