Ben kahvaltıda sucuklu menemen seviyorum, kız kardeşim ise kaşarlı omlet istiyor.

Yes, Turkish often drops subject pronouns because the verb ending already shows the subject.

• seviyorum = I like / I am liking
• istiyor = he/she wants / is wanting

So ben is not strictly necessary for grammar. It is included here for emphasis or contrast:

• Ben kahvaltıda sucuklu menemen seviyorum, kız kardeşim ise kaşarlı omlet istiyor.

This gives a feeling like:

• As for me, I like sucuklu menemen for breakfast, whereas my sister wants a cheese omelet.

Without ben, the sentence would still be correct.

Kahvaltı means breakfast.

The ending -da / -de is a common location suffix, often meaning in, at, on depending on context.

So:

• kahvaltıda = at breakfast / for breakfast / during breakfast

In this sentence, it means something like for breakfast or at breakfast time.

The suffix changes according to vowel harmony and consonant harmony:

• evde = at home
• okulda = at school
• kahvaltıda = at breakfast

The ending -lı / -li / -lu / -lü means with, containing, or having.

So:

• sucuk = Turkish sausage
• sucuklu = with sucuk

and

• kaşar = kaşar cheese
• kaşarlı = with kaşar cheese / cheesy

This suffix is very common in food names:

• peynirli börek = cheese pastry
• zeytinli ekmek = bread with olives
• mantarlı pizza = mushroom pizza

So sucuklu menemen is menemen with sucuk, and kaşarlı omlet is omelet with cheese.

Yes. Menemen is the name of a Turkish dish, usually made with eggs, tomatoes, and peppers, sometimes with extras like cheese or sucuk.

In the sentence, menemen is just a regular noun, and sucuklu describes it:

• sucuklu menemen = menemen with sucuk

So grammatically it works just like:

• peynirli sandviç
• tavuklu pilav

These verbs express slightly different ideas:

• sevmek = to like
• istemek = to want

So:

• seviyorum = I like
• istiyor = he/she wants

In English, this sentence mixes a general preference for one person and a current desire for another person. That is normal in Turkish too.

It suggests something like:

• I like sucuklu menemen for breakfast
• my sister, however, wants a cheese omelet

If you changed the second verb to seviyor, it would mean your sister likes cheese omelets in general, not necessarily that she wants one now.

İse is a contrast marker. It often means something like:

• as for
• whereas
• however
• on the other hand

So:

• kız kardeşim ise = as for my sister / my sister, however

It helps set up a contrast between the two parts of the sentence:

• Ben ... seviyorum
• kız kardeşim ise ... istiyor

Without ise, the sentence would still be grammatical, but the contrast would be less clear.

In Turkish, possession is often shown with a suffix on the noun rather than with a separate word like my.

• kız kardeş = sister
• kız kardeşim = my sister

The -im / -ım / -um / -üm ending marks my, depending on vowel harmony.

So:

• annem = my mother
• babam = my father
• arkadaşım = my friend
• kız kardeşim = my sister

You can also say benim kız kardeşim, but benim is optional unless you want extra emphasis.

Good question. In Turkish, direct objects do not always take the accusative ending.

A specific, definite direct object usually takes the accusative:

• Omleti istiyor. = He/she wants the omelet.
• Menemeni seviyorum. = I like the specific menemen.

But a nonspecific or general object is often left bare:

• Kaşarlı omlet istiyor. = She wants a cheese omelet.
• Sucuklu menemen seviyorum. = I like sucuklu menemen / I like menemen with sucuk.

So the lack of accusative here fits the more general or indefinite meaning.

Turkish -iyor forms often cover both:

• actions happening now
• general present meanings
• habits
• ongoing states

So seviyorum can mean:

• I like
• I do like
• sometimes literally I am liking, though English usually does not say that

Likewise:

• Türk kahvesi seviyorum. = I like Turkish coffee.
• Kitap okuyorum. = I am reading a book.

The same verb form can work for both kinds of meanings, and context tells you which one is intended.

The word order is natural, but Turkish is fairly flexible.

The sentence as written is:

• Ben kahvaltıda sucuklu menemen seviyorum, kız kardeşim ise kaşarlı omlet istiyor.

This is a very normal order: subject + time/context + object + verb

But Turkish can move parts around for emphasis:

• Kahvaltıda ben sucuklu menemen seviyorum...
• Sucuklu menemen ben kahvaltıda seviyorum...

These alternatives are possible, but they change the emphasis and may sound more marked. For a learner, the original version is the safest and most natural pattern.

It can suggest all of those, depending on context. In this sentence, the most natural English understanding is probably:

• for breakfast

But literally, kahvaltıda is closer to:

• at breakfast
• during breakfast

Turkish often uses the location/time suffix -da/-de in places where English would choose different prepositions. So the best translation depends on what sounds natural in English, even though the Turkish form stays the same.