Just to confirm, 3 links of chorizo refer to about 1.5 pound, correct?

It really depends on the size and length of the chorizo. I have a one pound package of Chorizo Bilbao which contains six links. Imported from L'Espanola in Harbor City, CA. 1 1/2 pounds does indeed sound like a lot.

DC must be very consistent :) because I was just going to write in and say that sausage links at area Whole Foods here are 3-4 oz each. Maedl, I didn't know you were here too!

A chorizo link in my area (DC) is closer to 4 ounces. A pound and a half sounds like a lot, but left oers are always fine.

Sorry... I thought I was asking the author of the recipe. But thank you for your reply. It confirms my understanding of it!

You can ask the Author of this recipe directly (Brussel Sprouts for Breakfast) if you are trying to be very exact.
I think however, that you should use what feels right to you. 1.5 pounds of fresh chorizo will cook down a considerable amount, so it's not unreasonable to assume that is correct!
Hope this helps.