The best. Where? Sit down, take out, whatever.
Bologna Pastificio on Dufferin, just north of Glencairn.
They make the best lasagna I've had in Toronto. Probably the best I've had anywhere.
It's a storefront, not a restaurant. So it is takeout only. Warms up beautifully at home. Can also buy it at Dave Young grocers on Eglinton, though only a smaller size I think, not larger sizes. The smaller size is still easily good for two people though.
I'm sure it's sold at other specialty grocers but I cannot recall where off the top of my head.
Having just enjoyed it again for dinner tonight, I have to chime in and heartily recommend the prepared lasagna at Summerhill Market. It's made with bolognese/tomato and bechamel sauces, all the ingredients are fresh and easily discernible, not all mushed into a sauce -- fresh basil and spinach, lots of mozzarella and parmesan cheese. It tastes great, homemade, with lots of flavour. Not cheap but worth every penny.
446 Summerhill Ave, Toronto, ON M4W, CA
When you're at Summerhill for the lasagne, pick up a prepared Caesar salad to go with it. The "small" is easy big enough for two even three people, as a side. It comes with shaved parmesan and a wedge of lemon to squeeze into the house-made dressing, which contains anchovy paste. Quite tasty.