Combine all of the Chipotle Spread ingredients in a mixer with a paddle attachment and beat until well combined. Set aside or refrigerate for up to 3 weeks.
Lay out the flour tortillas flat on your work surface. Spread 2 tablespoons of the chipotle spread on one side of each tortilla in an even layer. Then layer on the lettuce, roast beef, cheese, onion and tomato in the middle of the tortilla making sure to leave about an inch on the edges of the wrap free. Fold the edge of the tortilla closest to you over the ingredients then pull it back snuggly to make sure that all of the ingredients are tight. Fold the right and left sides in and roll up the wrap , burrito style. You may want to put a little spread right on the very edge to help the wrap stay sealed. Slice down the middle and serve!
Tip: If you are making this to pack, layer your ingredients in this order: Chipotle spread, roast beef, cheese, lettuce, onion, tomato. Wrap in wax paper. That way nothing will be soggy by lunchtime.