Let the strata chill 2 hours, and it will be nice and moist. If you leave it overnight in the refrigerator, it will be even more custardy.
To test for doneness, pierce center of strata with a sharp knife; it should feel firm and the knife should come out clean.
The muffin halves and Canadian bacon are arranged upright in the baking dish for easier serving. When cutting, you'll be able to see the layers and make sure each portion contains a few pieces of bread and bacon.