Heat oil and butter to a cooking pot and add onions and garlic.
Sauté until soft. Now add chopped tomatoes and tomato can.
Add a little water, cover and allow to cook until soft.
Now add oregano, salt and pepper, give a stir.
Add pasta packet and enough water to cover the pasta.
Cover and allow to cook until the pasta is fully cooked.
At this stage add more water to make the pasta soupy according to your preference. Add ketchup, spinach, kidney beans and enoki mushrooms. Boil for 2-3 minutes.