غداء اليوم لذيذ، وفيه الأرز والدجاج.

In Arabic, the verb to be in the present tense is usually not written or spoken.

So:

• غداء اليوم لذيذ literally looks like Lunch today delicious but it means Today’s lunch is delicious.

This is a very normal Arabic sentence pattern, called a nominal sentence.
The first part is the topic:

• غداء اليوم = today’s lunch

And the second part describes it:

• لذيذ = delicious

If you wanted was or will be, then Arabic would usually use a verb such as كان or سيكون.

غداء اليوم literally means the lunch of today, which is the natural Arabic way to say today’s lunch.

This is an iḍāfa construction, often called a genitive/possessive construction:

• غداء = lunch
• اليوم = the day / today

Together:

• غداء اليوم = today’s lunch

In an iḍāfa, the first noun usually does not take الـ. Its definiteness comes from the second noun.

So:

• غداء يوم = a day’s lunch / lunch of a day
• غداء اليوم = today’s lunch / the lunch of today

That is why you see غداء and not الغداء here.

That is a common feature of Arabic.
The word اليوم literally is the day, but in many contexts it naturally means today.

So in this sentence:

• غداء اليوم = today’s lunch

Arabic often uses time expressions like this very naturally:

• اليوم = today
• غدًا = tomorrow
• أمس = yesterday

Here, اليوم is part of the iḍāfa, so the whole phrase means the lunch of today.

It does agree with غداء.

• غداء is a masculine singular noun.
• So the adjective is also masculine singular: لذيذ.

If the noun were feminine, the adjective would usually be feminine too. For example:

• الوجبة لذيذة = The meal is delicious

So here:

• غداء اليوم لذيذ is correct because غداء is masculine.

They are the same adjective in different genders:

• لذيذ = delicious (masculine)
• لذيذة = delicious (feminine)

Examples:

• الطعام لذيذ = The food is delicious.
• الوجبة لذيذة = The meal is delicious.

In your sentence, the thing being described is غداء and that noun is masculine, so لذيذ is the correct form.

وفيه breaks down into:

• و = and
• في = in
• ـه = it / in it (masculine singular pronoun)

So وفيه literally means and in it.

In natural English, though, it often means something like:

• and it has
• and it contains
• and there is in it

So:

• وفيه الأرز والدجاج literally: and in it, the rice and the chicken naturally: and it has rice and chicken / and it contains rice and chicken

Because it refers back to غداء:

• غداء = lunch
• ـه = it (masculine singular)

Since غداء is grammatically masculine singular, Arabic uses ـه.

If the word were feminine, you would use فيها instead:

• الوجبة لذيذة، وفيها الأرز
  = The meal is delicious, and it has rice in it

So the pronoun matches the grammatical gender of the noun it refers to.

Because Arabic often prefers a simpler structure.

After saying:

• غداء اليوم لذيذ

it is very natural to continue with:

• وفيه الأرز والدجاج

This means and it contains rice and chicken.

You do not need an extra word like هو here. In fact, وفيه already carries the idea of in it.

Arabic often uses prepositional phrases plus attached pronouns very efficiently.

In many food contexts, Arabic often uses the definite article where English may use a bare noun.

So:

• الأرز = the rice
• الدجاج = the chicken

But in English, we usually just say:

• rice
• chicken

So the Arabic phrase:

• وفيه الأرز والدجاج

can naturally be translated as:

• and it has rice and chicken

even though a more literal translation would be:

• and in it are the rice and the chicken

This is a normal difference between Arabic and English usage.

Sometimes yes, depending on style and context, but الأرز والدجاج sounds very natural here.

In Arabic, food items are often spoken of as known categories, so the definite article is common:

• أحب الأرز = I like rice
• في الغداء الدجاج = At lunch there is chicken

Using the definite article here does not necessarily make the English translation the rice and the chicken in a specific sense. It is just normal Arabic usage.

Because د is a sun letter.

In Arabic, when الـ comes before a sun letter, the l sound of الـ is not pronounced separately. Instead, the following consonant is doubled.

So:

• الدجاج is written al-dajāj
• but pronounced ad-dajāj

The spelling stays the same, but the pronunciation changes.

By contrast, in الأرز, the ل is pronounced:

• الأرز ≈ al-ʾaruzz

So these two words behave differently in pronunciation.

A careful pronunciation is roughly:

• ghadāʾ

Breakdown:

• غ = a voiced guttural sound, often approximated as French r or a gargled g/r
• د = d
• ا = long ā
• ء at the end = a glottal stop

So the word ends with a little catch in the throat:

• gha-dāʾ

If that final ء is new to you, it may help to think of the break in the middle of English uh-oh. The ending of غداء has that kind of stop.

It is basically a nominal sentence followed by another clause.

Part 1:

• غداء اليوم لذيذ
• Topic: غداء اليوم = today’s lunch
• Comment/predicate: لذيذ = delicious

Part 2:

• وفيه الأرز والدجاج
• و = and
• فيه = in it / it contains
• الأرز والدجاج = rice and chicken

So the full sentence is:

• Today’s lunch is delicious, and it has rice and chicken.

This kind of sentence is extremely common in Arabic.

There is no strict grammar rule here forcing that order. It is mostly a matter of natural expression.

Arabic often joins nouns with و:

• الأرز والدجاج = rice and chicken

You could also say:

• الدجاج والأرز

and the grammar would still be fine.
But food items are often listed in an order the speaker finds natural or more common in context.

Yes, in fully vocalized formal grammar, there would be case endings, but in normal written Arabic they are usually omitted.

A fully inflected version could be something like:

• غداءُ اليومِ لذيذٌ، وفيه الأرزُ والدجاجُ.

Very roughly:

• غداءُ = nominative
• اليومِ = genitive because it is the second term of the iḍāfa
• لذيذٌ = nominative predicate

But most everyday Arabic writing leaves these endings off, so learners usually see:

• غداء اليوم لذيذ، وفيه الأرز والدجاج.

That is completely normal.

It can do both.

Literal location:

• فيه ماء = There is water in it.

Content/containment:

• وفيه الأرز والدجاج = And it contains rice and chicken.

So فيه literally means in it, but in many contexts the natural English translation is it has or it contains.

This is very common when talking about food, books, boxes, rooms, and so on.

It is very understandable and natural in Modern Standard Arabic, and much of it would also be understood in spoken varieties.

However, in everyday speech, different dialects may change some words or phrasing. For example, some speakers might use different vocabulary for lunch or a different way to say it has.

Still, the MSA sentence:

• غداء اليوم لذيذ، وفيه الأرز والدجاج.

is clear, correct, and very useful for learners.

The comma simply separates two related parts of the sentence:

1. غداء اليوم لذيذ
2. وفيه الأرز والدجاج

It works much like English:

• Today’s lunch is delicious, and it has rice and chicken.

Arabic punctuation in modern writing often resembles English punctuation, although usage can vary somewhat by writer and style. The comma here helps readability.