cook sausage meat in a large frying pan over medium heat until fully cooked breaking it up so it doesn't cook into 1 large patty. remove from heat and set aside.
dice bell pepper
add butter to the frying pan and allow to melt before adding the pepper and the spinach. cook while moving around consistently until spinach has cooked down and has reduced significantly in size.
whisk eggs and milk in a bowl then pour over peppers and spinach. season with salt pepper and garlic. and continue cooking and scrambling until fully cooked. remove from heat. for extra heat, you could add some jalapeno peppers or chili flakes at this stage.
on a flour tortilla add some of the sausage and some of the eggs. add a few slices of cheese and top with siracha sauce.
start by folding in the two sides of the tortilla then fold the closest edge to you forward to meet with the opposite side, pull back to create a roll, tuck in the edges, and roll tight. (I hope that makes sense)