
To make brown butter, add butter to a small skillet.
Cook butter over low heat, stirring constantly, until it becomes a brown nutty color; remove from heat and pour out of skillet into a bowl to stop browning (you don't want it to burn).
Wipe out the skillet and cook the mushrooms in the olive oil with salt, pepper, Italian seasoning and garlic paste until they soften.
Add the mushroom mixture to the bowl of cooked spaghetti along with the lemon juice, bacon, browned butter and Mizithra cheese. Toss to mix.