It can be easy, cheap, and makes good leftovers.
Sometimes I will just doctor up a jar-sauce and add fresh basil and parm and it is pretty good for the amount of effort.
If I feel like I need more protein or veggies it is easy to add.
I recently tried a recipe that has anchovies, green olives, garlic, capers, cherry tomatoes, and lots of olive oil. I liked it a lot, but realize it is not for everyone.