Que rico! in english
When talking about food, it is easy, you say "Yummy!" but that is as for taste, what do you use for a feeling? in Spanish we say "se siente rico" o 'que rico" but in English all I've heard is "it feels nice/fine/good". Is there any other that I'm missing? even for food, I would like to get other examples as well. Thank you.
8 Answers
For food: Scrumptious, delicious, luscious, tasty, delectable, mouthwatering.
In general, including for food: Fantastic, amazing, wonderful, great, super.
"Those oysters were delicious. Now I feel fantastic!"
Chargrilled
Raw on the half shell
Today we had the most lovely picnic, it was delightful/ most tasty/ super-duper. It consisted of egg mayonnaise sandwiches with sand, my very favourite! In fact the whole day turned out to be supercalifragilisticexpialidocious. I feel fantastic, on top of the world, couldn't be better.
The following expressions have not been mentioned so far:
Awesome!, Out of this world!
Now I suspect you will have trouble figuring out which expression to use and where.
It depends on where you are in the English speaking world and what you are talking about. "Wow!" applies to almost anything. Fantastic! Super! Outstanding! Unbelievable! You can add "really" to any adjective to emphasize it. There are no doubt many expressions using vulgarities but I don't use those in any language anymore. I live in the USA so these words are what come to mind in answering your question.
Edit to my post for your information: In writing the names of languages or nationalities in English, you always begin them with a capital letter: English, Spanish, American, etc.
Reading through these answers I realise, not only does it depend where in the world you are, but also how old you are and in what context. Many of the answers provided would sound very strange if they were used by my friends or their twenty-something year old children whilst others would not be appropriate in a formal or business context.
My Spanish friends often comment on how, in English, absolutely everything from food to feelings to people is nice, good or great when Spanish uses a much wider variety of words.
Even with other adjectives most of us actually over-use the same few adjectives in conversation and it is only in writing that we explore a wider vocabulary. Also, the appropriate adjectives go in and out of fashion very quickly.
(anyone remember to-die-for? As in "this cake is to-die-for!" or "Radical")
I wouldn't recommend randomly choosing from the suggestions above without expert guidance.(I think at least some of the answers are 'taking the piss*' 
) so watch a couple of English-speaking TV series set in a similar context to the way you want to appear - eg country, age group, social status, work environment, - and you'll get the appropriate few adjectives very quickly.
*an Australian expression for making a joke
Strewth mate that tastes like " ambrosia" you flamin little ripper.
Here's some more:
For food or anything good: "It is/they are - radical, awesome, mega, to-die-for, bad (meaning good), wicked (meaning very good), killer (meaning to-die-for), amazing, amaze-balls, the business," NB: These can also be used on their own as a one word exclamation with a ! to indicate approval of something in the same way as using ¡Que Rico!
For how you feel; "I feel - awesome, pumped, super-pumped, chilled, cool," "I am - doing good/great, cruising, chilled, cool, rocking"
Finger lickin' good!
Para chuparse los dedos.
