In a large skillet over medium-high heat, add the ground beef directly to the pan. Break it up and brown the meat until there is no pink left. Drain the meat and add it directly to the pot of the crockpot. Put the skillet back on the stove over medium-low heat, no need to clean the skillet. Add the butter, onion, and bell pepper, cook, stirring occasionally until softened about 5 minutes. Add the garlic and cook until fragrant, 30 seconds. Add this mixture to the crockpot.
Add the salt, pepper, crushed tomatoes, chicken stock, diced tomatoes, soy sauce, dried oregano, bay leaves, and Worcestershire to the pot. Stir to combine, cover, and cook on high for 2 hours or low for 4 hours.
Cook the macaroni noodles per the directions on the back of the packaging. Add the cooked noodles to the crockpot and stir it in. Serve immediately with a garnish of parsley, optional.
If you continue to cook the goulash after the noodles are added, the noodles may end up absorbing a lot of the liquid and become mushy.