रात के खाने में चावल और दाल हैं।

It means for dinner or at dinner.

A quick breakdown:

• रात = night
• रात का खाना = the night meal, or dinner
• में = in

Because खाना is followed by the postposition में, it changes to its oblique form खाने, and का changes to के to match that form.

So:

• रात का खाना = dinner
• रात के खाने में = in the dinner / for dinner

In natural English, you would usually translate it as for dinner.

Because Hindi nouns often change form before a postposition such as में, से, को, etc.

The basic phrase is:

• रात का खाना = dinner

But once you add में, खाना must go into the oblique singular form:

• खाना → खाने

And the possessive marker changes too:

• का → के

So:

• रात का खाना = dinner
• रात के खाने में = in/for dinner

This is a very common pattern in Hindi grammar.

में usually means in, inside, or within.

Here it gives the sense of in the dinner meal or, more naturally in English, for dinner.

So the sentence is structured like:

• रात के खाने में = in the dinner / for dinner
• चावल और दाल हैं = there are rice and dal

Hindi often uses में in this kind of context to talk about what is included in a meal, list, event, chapter, box, room, etc.

Because चावल और दाल is a compound subject: rice and dal.

When two things are joined by और (and), Hindi normally uses a plural verb:

• चावल है = there is rice
• दाल है = there is dal
• चावल और दाल हैं = there are rice and dal

So हैं is used because there are two items together.

Because both are usually treated as mass nouns or food names.

• चावल can mean rice in a general sense
• दाल can mean dal/lentils as a dish or substance

In English, mass nouns also often do not look plural:

• rice
• water
• bread

Hindi works similarly here. Even though the verb is plural because there are two foods listed together, the nouns themselves do not need plural endings.

Yes, that is close to the literal structure.

A very literal gloss would be something like:

• In dinner, rice and dal are.

But natural English would usually say:

• There is rice and dal for dinner.
• Dinner includes rice and dal.

So the Hindi sentence is an existence/listing sentence: it tells you what the dinner consists of.

Yes. Hindi word order is fairly flexible, especially in simple listing sentences like this one.

For example, these are also natural:

• रात के खाने में दाल और चावल हैं।
• चावल और दाल रात के खाने में हैं।

The original order is very natural because it sets the context first:

• For dinner → rice and dal are there

That said, the most common and neutral version is the one you were given.

और means and.

So:

• चावल और दाल = rice and dal

It simply joins the two food items. This is the standard Hindi word for and in most everyday sentences.

It can refer to either, depending on context, but in a sentence about a meal like this, दाल usually means the cooked lentil dish.

So here:

• चावल और दाल most naturally means rice and dal as food being served for dinner.

This is one of those very common Hindi food words whose exact meaning depends on the situation.

It mainly tells you what is included in dinner or what is being served.

It does not specifically say that someone is eating it right now.

So:

• रात के खाने में चावल और दाल हैं। = There is rice and dal for dinner.

If you wanted to say We are eating rice and dal for dinner, you would need a different sentence, for example:

• हम रात के खाने में चावल और दाल खा रहे हैं।

So the given sentence is more about the menu/content of the meal than the action of eating.