Cook spaghetti following box instructions.

Drain cooked spaghetti, add butter and 1 tsp EVOO, cover and let sit.

Add the rest of EVOO to a pan, garlic and chopped onion, and cook for about 2 min.

Add diced tomatoes to pan, cubes of chicken bouillon, spinach, pepper and water. Also add shrimp if using. Simmer until lightly reduced.

Mix sauce with spaghetti and serve.