Prepare spaghetti, while you are cooking the other ingredients, in a large pot of salted water.

Cook spaghetti all denote so it still has a bite to it (about two minutes shorter than normal cooking time). Save 1/2 cup of the pasta water before draining the pasta. You'll be tossing this with the sauce later.

Heat up a large frying pan or skillet with butter and olive oil. Saute the onion until translucent, add the peppers and mushrooms and continue to saute until soft.

Add the ham and saute until lightly browned, about 2-3 minutes

Add the white wine to deglaze the pan and let cook about a minute to let the alcohol burn off.

Add the marinara sauce and ketchup and toss to combine evenly.

Add the cooked spaghetti to the pan and toss well to combine the sauce and spaghetti.

Slowly add the reserve pasta cooking water while you toss, this will thicken the sauce slightly.

Serve immediately with parmesan cheese on top.