Chop the Romaine and Spinach, and toss in a bowl. Sliver the cabbage and onion, as well as slicing the mushrooms, and toss to combine.
Cube the cheese, slice the tomatoes, and matchstick the pears. Add half of each to the bowl, and toss to combine. Set aside the other half of each to garnish on top later.
Add half of the walnuts to the bowl, and toss to combine. Then, sprinkle the rest of the walnuts on top.
Sprinkle, spread, or arrange the remaining cheese, tomatoes, and pears on top of the salad.
Serve with Balsamic vinaigrette.
Notes
You may add a bit of black pepper on the very top as well.