Na śniadanie robię kanapkę z jajkiem, pomidorem i ogórkiem.

In Polish, na + accusative is often used to mean for a meal, occasion, or purpose.

So:

• na śniadanie = for breakfast
• na obiad = for lunch / dinner
• na kolację = for dinner / supper

Literally, it is not a word-for-word match with English, but it is the normal Polish way to say this.

So Na śniadanie robię kanapkę... means For breakfast, I make a sandwich...

Robię is the 1st person singular form of robić, which means to do / to make.

Here, robić kanapkę is a very natural way to say to make a sandwich.

So:

• robię = I make / I am making

Depending on context, the Polish present tense can mean:

• a habitual action: I make
• an action happening now: I am making

So this sentence could mean either:

• For breakfast, I make a sandwich with egg, tomato, and cucumber.
• For breakfast, I’m making a sandwich with egg, tomato, and cucumber.

Because kanapkę is in the accusative case, which is used for the direct object of the verb.

The basic form is:

• kanapka = sandwich

But after a verb like robię when it is the thing being made, it becomes:

• robię kanapkę = I make a sandwich

This happens because kanapka is a feminine noun, and many feminine nouns ending in -a change to -ę in the accusative singular.

Examples:

• mam kanapkę = I have a sandwich
• jem kanapkę = I eat a sandwich
• robię kanapkę = I make a sandwich

Because the preposition z meaning with requires the instrumental case.

So the nouns change form:

• jajko → z jajkiem
• pomidor → z pomidorem
• ogórek → z ogórkiem

That is why all three words look different from their dictionary forms.

So:

• z jajkiem = with egg
• z pomidorem = with tomato
• z ogórkiem = with cucumber

This is a very common pattern in Polish:

• kawa z mlekiem = coffee with milk
• kanapka z serem = a sandwich with cheese
• makaron z sosem = pasta with sauce

Yes, z can mean both with and from, depending on context.

Here it means with, because it describes what is in the sandwich:

• kanapka z jajkiem = a sandwich with egg

In other sentences, z can mean from:

• Jestem z Polski. = I am from Poland.
• Wracam z pracy. = I’m coming back from work.

So you have to understand the meaning from the sentence as a whole.

In Polish, when listing ingredients or fillings, the singular is often used in a general sense.

So:

• kanapka z jajkiem, pomidorem i ogórkiem sounds like a sandwich with egg, tomato, and cucumber

This does not necessarily mean one whole egg, one whole tomato, and one whole cucumber. It just names the ingredients in a natural way.

English often does something similar:

• a sandwich with egg and tomato

If you used plurals, it would suggest a different nuance, such as multiple pieces or a different style of phrasing.

No, Polish word order is fairly flexible.

The sentence:

• Na śniadanie robię kanapkę z jajkiem, pomidorem i ogórkiem.

is natural and neutral.

But you could also say:

• Robię na śniadanie kanapkę z jajkiem, pomidorem i ogórkiem.
• Kanapkę z jajkiem, pomidorem i ogórkiem robię na śniadanie.

These versions shift the emphasis a bit, but the basic meaning stays the same.

The original sentence sounds very natural because it starts with the topic na śniadanie = for breakfast.

Because Polish does not have articles like a, an, or the.

So kanapkę can mean:

• a sandwich
• the sandwich

The exact meaning depends on context.

In this sentence, English naturally translates it as a sandwich, but Polish does not need a separate word for that.

It can describe either one.

Polish present tense often covers both:

• I make
• I am making

So without more context, the sentence could mean:

1. A habit / routine

   • For breakfast, I make a sandwich with egg, tomato, and cucumber.

2. Something happening now

   • For breakfast, I’m making a sandwich with egg, tomato, and cucumber.

If you want to make the habitual meaning clearer, you could add words like:

• zwykle = usually
• codziennie = every day

If you want to make the current action clearer, context usually does that.

Not always exactly.

Kanapka is often translated as sandwich, but in Polish it can refer more broadly to an open sandwich or a piece of bread with toppings, depending on context.

In everyday use, though, translating it as sandwich is perfectly normal.

So in this sentence, kanapkę z jajkiem, pomidorem i ogórkiem is a natural and correct way to talk about a sandwich.

Yes. A few options are possible, but they are not all equally natural in the same context.

For example:

• Przygotowuję kanapkę... = I’m preparing a sandwich...
• Robię kanapkę... = I’m making a sandwich...

Robię kanapkę is very common and everyday. Przygotowuję kanapkę sounds a bit more formal or deliberate.

So the original sentence is simple, natural, and idiomatic Polish.