Divide the spinach leaves among the tortillas. Top with the tofu scramble, black beans, red peppers, avocado, pickled onions, and serranos. Season with a sprinkle of salt and a squeeze of lime.

Fold the left and right sides of the tortilla over the filling. Fold the bottom flap of the burrito up and over the filling, then tuck the sides and the filling as you roll the burrito. Wrap in foil, slice, and serve with salsa on the side.