Det tar bare ti minutter å lage taco hvis grønnsakene allerede er hakket.

In Det tar bare ti minutter ..., det is a dummy subject, similar to English it in It takes only ten minutes.

It does not refer to a specific thing. Norwegian often uses det in this kind of general statement:

• Det tar lang tid. = It takes a long time.
• Det er lett. = It is easy.

So Det tar bare ti minutter is the normal way to say It only takes ten minutes.

Bare means only / just and is extremely common in everyday Norwegian.

So:

• Det tar bare ti minutter = It only takes ten minutes

You could also say kun, but bare sounds more natural in normal spoken Norwegian.

Compare:

• bare = everyday, common
• kun = a bit more formal or written

Both are correct here, but bare is the most natural choice for most situations.

Because after numbers greater than one, Norwegian normally uses the plural form of the noun.

• ett minutt = one minute
• to minutter = two minutes
• ti minutter = ten minutes

So ti minutter is just standard plural grammar.

The å is the infinitive marker, like to in English.

• å lage = to make
• å spise = to eat
• å gå = to walk/go

After tar ... minutter, Norwegian commonly uses an infinitive phrase:

• Det tar ti minutter å lage taco.
• literally: It takes ten minutes to make taco.

So å lage works just like English to make.

Here taco is being used in a general food sense, not referring to one specific taco.

So lage taco means something like:

• make tacos
• make taco
• prepare taco

In Norwegian, food names are often used this way without an article:

• lage middag = make dinner
• spise frokost = eat breakfast
• lage taco = make taco / make tacos

If you said lage en taco, that would sound more like make one taco.
If you said lage tacoen, that would mean make the taco, referring to a specific one already known.

Yes. Hvis means if.

• hvis grønnsakene allerede er hakket = if the vegetables are already chopped

It introduces a condition, just like English if.

You may also see dersom, which also means if, but:

• hvis = more common in everyday language
• dersom = a bit more formal

So hvis is the most natural choice here.

Grønnsakene is the definite plural form: the vegetables.

• en grønnsak = a vegetable
• grønnsaker = vegetables
• grønnsakene = the vegetables

The sentence is talking about the specific vegetables used for the taco, so Norwegian uses the definite form:

• hvis grønnsakene allerede er hakket
• if the vegetables are already chopped

If you said hvis grønnsaker allerede er hakket, it would sound less natural here because it would mean if vegetables are already chopped in a more general, less specific way.

In this sentence, allerede is an adverb meaning already.

Norwegian adverb placement can vary somewhat, but allerede er hakket is a very natural pattern here:

• hvis grønnsakene allerede er hakket

This is similar to English if the vegetables are already chopped.

You may also hear slightly different placement in other sentences, but this word order is completely normal and idiomatic.

Er hakket means are chopped or have been chopped, depending on context. Here it describes the vegetables as being in a chopped state.

• hakket = chopped
• er hakket = are chopped / are already chopped

This construction is very common in Norwegian when describing a result:

• Døren er lukket. = The door is closed.
• Kjøttet er stekt. = The meat is cooked/fried.
• Grønnsakene er hakket. = The vegetables are chopped.

You could think of it as an adjective-like past participle.

Hakkes would be different. That is a passive present form meaning something more like:

• are being chopped
• get chopped

So er hakket is correct because the sentence means the vegetables are already in that finished state.

It is originally the past participle of the verb å hakke = to chop.

In sentences like this, it behaves very much like an adjective describing the result:

• grønnsakene er hakket = the vegetables are chopped

So grammatically, you can think of it as a participle used adjectivally.

This is very common in Norwegian:

• skrevet = written
• åpnet = opened
• kokt = boiled
• hakket = chopped

Good question. Norwegian has V2 word order in main clauses, meaning the verb usually comes in second position. But after a subordinating conjunction like hvis, you get subordinate clause word order, which is different.

Main clause:

• Grønnsakene er allerede hakket.

Subordinate clause:

• hvis grønnsakene allerede er hakket

Notice that in the subordinate clause, the adverb allerede can come before the verb er, which is normal.

So the sentence contains:

1. a main clause:
   • Det tar bare ti minutter å lage taco
2. a subordinate clause:
   • hvis grønnsakene allerede er hakket

That is why the word order looks the way it does.

Yes, that would be understandable and basically correct, but there are small differences in naturalness:

• bare is more everyday than kun
• hvis is the most direct and common way to say if
• om can also mean if, but in many cases hvis is clearer and more common for conditions like this

So your version works, but the original sentence sounds more natural for everyday Norwegian:

• Det tar bare ti minutter å lage taco hvis grønnsakene allerede er hakket.

Not necessarily. In everyday Norwegian, lage taco usually means prepare taco for a meal. That could include:

• chopping vegetables
• frying meat
• warming tortillas
• putting everything out on the table

It does not have to mean making every component completely from scratch.

So in this sentence, lage taco is best understood as prepare taco / make tacos for dinner, not necessarily as a fully literal from-scratch cooking process.