Даже если фасоль варится долго, салат с кукурузой всё равно получается сытным.

Если simply means if.

Даже если means even if and adds the idea that the second part is true despite the condition.

So:

• Если фасоль варится долго... = If beans take a long time to cook...
• Даже если фасоль варится долго... = Even if beans take a long time to cook...

That extra даже makes the contrast stronger.

Всё равно means something like:

• all the same
• anyway
• still
• nevertheless

In this sentence, it shows that the result does not change:

• Даже если фасоль варится долго, салат с кукурузой всё равно получается сытным.
• Even if the beans take a long time to cook, the corn salad still turns out filling.

A very common pattern in Russian is:

• Даже если ..., всё равно ...
• Even if ..., still ...

Because вариться is the reflexive/passive-like form and means to be cooking / to cook / to boil in the sense of the food itself undergoing the process.

• Я варю фасоль. = I cook/boil beans.
• Фасоль варится. = The beans are cooking / the beans boil / the beans take time to cook.

So:

• варю = I cook something
• варится = something is being cooked / cooks

In this sentence, фасоль is the thing being cooked, so варится is the natural choice.

Yes, this is a very common difference between English and Russian.

In Russian, фасоль is usually treated as a mass noun or a general category word, like beans as an ingredient. So it is grammatically singular feminine:

• фасоль варится
• вкусная фасоль
• много фасоли

English often uses plural beans, but Russian often uses singular фасоль when talking about the food in general.

Because долго is an adverb, not an adjective.

It describes the action варится (cooks / is cooking), not the noun фасоль.

• долго варится = takes a long time to cook
• быстро варится = cooks quickly

Adverbs in Russian do not change for gender, number, or case.

Получаться often means:

• to turn out
• to come out
• to end up being

Here it does not mean to receive. It means the salad turns out or comes out a certain way.

• Салат получается вкусным. = The salad turns out tasty.
• Торт получился сухим. = The cake turned out dry.

So салат ... получается сытным means the salad turns out filling.

This is a very common Russian way to describe the result of making food.

Because after получаться in this meaning, Russian often uses the instrumental case for the resulting quality.

So:

• салат получается сытным
• суп получился вкусным
• ужин получается лёгким

The adjective сытный becomes сытным because it agrees with салат, which is masculine singular, but in the instrumental case.

This is similar to other Russian patterns where a noun turns out / becomes / is considered something, and the descriptive word is put in the instrumental.

Because the preposition с meaning with requires the instrumental case.

• кукуруза → nominative
• с кукурузой → instrumental

So:

• салат с кукурузой = salad with corn
• чай с сахаром = tea with sugar
• бутерброд с сыром = sandwich with cheese

This is one of the most common uses of the instrumental case in Russian.

No, here it clearly means with corn.

The preposition с most commonly means:

• with
• from (in some contexts)
• off/from the surface of

But in food phrases like салат с кукурузой, it means with as an ingredient.

If Russian wanted to say something like made from corn, it would usually use a different structure, for example:

• из кукурузы = from corn

So:

• салат с кукурузой = salad with corn
• something из кукурузы = something made from corn

The present tense here expresses a general truth or usual result.

Russian often uses the present tense for statements like:

• Если долго варить фасоль, она становится мягкой.
• Если добавить лимон, вкус становится ярче.
• Салат получается сытным.

So получается here means something like:

• turns out
• comes out
• ends up being

in a general, habitual sense.

If you wanted to talk about one finished salad in the past, you might say:

• Салат получился сытным. = The salad turned out filling.

Yes: Russian commonly uses the present tense in if-clauses when stating a general condition or repeated situation.

So:

• Если фасоль варится долго... = If the beans take a long time to cook...
• Если вода кипит... = If the water is boiling...

This does not necessarily mean the action is happening right this second. It can describe a general pattern.

In this sentence, both parts sound like a general observation:

• Even if beans take a long time to cook, corn salad still turns out filling.

The word order is fairly natural, but not completely fixed.

The sentence:

• Даже если фасоль варится долго, салат с кукурузой всё равно получается сытным.

places всё равно just before получается, which is very common.

You may also hear slightly different word orders, depending on emphasis, for example:

• Даже если фасоль долго варится, салат с кукурузой всё равно получается сытным.
• Даже если фасоль варится долго, всё равно салат с кукурузой получается сытным.

The original version is smooth and neutral.

This is an excellent question, because the words are related but mean different things.

• сытый = full, not hungry — usually describes a person or animal
• сытный = filling, substantial — usually describes food

So:

• Я сытый / Я сыта. = I am full.
• Это сытный салат. = This is a filling salad.

In your sentence, the salad is not full; it is filling, so сытным is correct.

The standard spelling is всё равно.

• всё = everything / all / still in some expressions
• все = all people / everyone or plural all

In many Russian texts, especially informal ones, ё is often written as е, so you may see все равно. Native speakers usually understand it from context.

But for learners, it is helpful to remember:

• всё равно is the normal phrase
• the pronunciation is with yo: [vso ra-vno]

So yes, you may see все равно in real life, but всё равно is the clearer and more correct spelling.