My Ethnicity? I'm, I'm..... Canadian?

So, I'm taking this class called Learning to work in a Diverse Environment (or something along that lines) and for our first assignment we had to answer these questions about our own ethnicity. *Insert cold sweat here* I looked down at the paper in front of me and realized that I had no answers. I have essentially, little to no ethnicity. Let me break it down for you, I am blond, blue eyed, pale skinned, protestant and my first language is English. I was born in Canada, my parents were born in Canada, their parents were born in Canada, and so on... On both sides of my family I am descended from "Planters" and "Empire Loyalists". We came over on the boat. Or as I like to joke "we're the ones that handed the Natives the smallpox infested blankets" Needless to say, my family has been here a long time. We've retained little to no culture from the United Kingdom, except for, of course, English and a penchant for Fish and Chips. We have no customs, nothing that really ties us to the "homeland" Frankly, we don't even eat a lot of "British" food.
Looking around, I notice that's there's really not even that much diversity in the town I live in. It is predominantly white middle class protestants. I live in a fishtank full of goldfish, instead of an ocean of diversity. And that saddens me a little, because what then do I have to pass on to my children that is uniquely our heritage? What traditions and language and food and even dress can I pass on? I suppose I can be proud of my "Planter" roots, I mean, back in the 1700's we took a chance on the "new world" but in terms of something concrete, I feel like I'm lacking.
I suppose that's why I am fascinated by, and love culture of all kinds. It's something that I don't have for myself, and so other people's cultures fascinate me.
I suppose I am fortunate that my boyfriend is "right off the boat" and so, I'll at least have some culture to pass on to my kids, even if it's not my own...