Тефтели получились мягкими, и даже дочка съела две.

Here получились means turned out or came out, not were obtained.

With food, Russian very often uses получиться to talk about the result of cooking:

Тефтели получились мягкими = The meatballs turned out soft/tender.

It suggests a result after preparation, not just a neutral description.

Because the subject is тефтели, which is plural.

In the past tense, Russian verbs agree with the subject in number, and in the singular they also agree in gender.

So:

• тефтели получились = plural
• тефтеля получилась = singular feminine, if you were talking about one meatball

The ending -сь is the reflexive ending from the infinitive получиться.

Because after verbs like получиться, Russian often uses the instrumental case for the word describing the resulting state.

So:

• мягкими = instrumental plural
• it agrees with тефтели in number

This is similar to patterns like:

• стать врачом = to become a doctor
• оказаться правым = to turn out to be right
• получиться вкусным = to turn out tasty

So тефтели получились мягкими literally has the structure the meatballs turned out soft.

Because получились мягкими and были мягкими are not quite the same.

• были мягкими just describes them as soft
• получились мягкими emphasizes the result of cooking

So получились is more natural when you mean something like they came out well / they turned out soft after being cooked.

Съела is perfective, from съесть, so it shows a completed action.

Here it means:

• she ate two, and that fact is presented as a finished result

If you used ела, that would be imperfective and would usually focus more on the process, repetition, or background action:

• дочка ела = the daughter was eating / used to eat

In this sentence, съела две fits because the speaker is talking about the successful outcome: the food was so good that even the daughter ate two.

Because the understood noun is feminine.

The omitted noun is тефтели in the sense of two meatballs, and the singular form is feminine. With feminine nouns, Russian uses две, not два.

Compare:

• две книги = two books
• две тефтели = two meatballs
• два стола = two tables

So две tells you the missing noun is feminine.

Because Russian often leaves out a noun when it is obvious from context.

So:

• дочка съела две = the daughter ate two
• the full version would be дочка съела две тефтели

This is very natural in both Russian and English when the thing being counted has already been mentioned.

Даже means even.

It highlights surprise:

и даже дочка съела две = and even the daughter ate two

This often implies something like:

• the daughter is picky
• or she usually does not eat much
• or the speaker did not expect her to eat that much

So даже adds an emotional or evaluative nuance, not just raw information.

Дочка is a more affectionate, everyday form of дочь.

• дочь = daughter, more neutral or formal
• дочка = daughter, but warmer, more personal, often used in family speech

It does not always mean little daughter literally, though it can sound more intimate or affectionate.

Because this is a compound sentence with two separate clauses:

• Тефтели получились мягкими
• даже дочка съела две

Each part has its own predicate, and the second part has its own subject, дочка. In standard Russian punctuation, a comma is normally used before и in this situation.

Yes. Russian word order is flexible, and changing it changes emphasis more than basic meaning.

For example:

• Тефтели получились мягкими, и даже дочка съела две = neutral, natural storytelling
• Даже дочка съела две = stronger emphasis on the surprising fact that it was the daughter
• И даже дочка съела две = similar, with a slightly more connected flow from the first clause

Also, даже usually stands close to the word it emphasizes. Here it emphasizes дочка: even the daughter.