Replacing butter with olive oil This is more of a food preparation/health question since it's after the food has been cooked. Recently I've been substituting butter with olive oil. For example, baked potatoes, instead of butter and sour cream, I use olive oil. I've also added olive oil to noodles and in place of gravy in a few meals and also in place of teriyaki sauce in rice bowls. 

In most cases the flavor is enhanced. With the potatoes, you taste a bit much of the olive oil but it's still good. 

Is it ok to continue doing this? I'm assuming that it's going to be better than butter and other "dressings" such as gravy. 

If this is a safe practice, I would like to get my family more into it, but I doubt they will enjoy the natural flavor of olive oil. I've been adding different flavors of Ms Dash seasonings (no salt) which give it nice hints of this and that depending on the type. What else can I do to enhance the flavor so they will enjoy it?
It's certainly safe. Butter, Oil, whatever, it's more about taste than anything else. Some people even push lard and butter as the "safe" options, because they require less processing than oil, and much less than margarine.

One thing which you should be aware of in regards to butter vs oil: butter has a significant amount of water in it, so you shouldn't substitute 1-to-1, or you will have a stronger flavour (and more fat) than perhaps you want.

If you're accustomed to salted butter, adding some salt will help ease the transition. If the flavour of olive oil is off-putting, there are plenty of more neutral flavoured oils that have a similar fat composition, or you can simply avoid extra virgin olive oil*.

*extra virgin olive oil in the U.S is largely a scam. In most of the world (countries that adhere to the IOC standard) this signifies "First Cold Press" olive oil. In the US it signifies "lamp grade olive oil with green food coloring". There are no restrictions on the use of terms like "extra virgin" in the US, so you can't guarantee that's what you're really getting just because it's on the label.