The Yonge and Bloor area down Yonge street is filled with all types of Asian food outlets including takeout and sitdown dining. You can get a large meal for a few bucks (CA$). Lunch time queues may be long at the most popular spots (such as Green Mango) but there are plenty of choices! Oja, Spring Rolls on Yonge (my favourite beef chow mein), Ginger (Vietnamese takeout -- several good choices), Green Mango (Thai food with a twist) etc.
If you don''t like Asian, there''s a small quiet Indian restaurant called Raj Nagar and a Taco Bell. Further down on Yonge you can find pizza outlets, Burger Kings and Macs etc., plus a Hungarian restaurant and one or two Ethiopian places.
What more do you need? Go out and eat!