На ужин я запеку брокколи с сыром.

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Breakdown of На ужин я запеку брокколи с сыром.

• с: with
• на: for
• ужин: the dinner

Questions & Answers about На ужин я запеку брокколи с сыром.

Why is it на ужин, not на ужине?

Because these are two different meanings.

• на ужин = for dinner
• на ужине = at dinner / at the dinner event

In this sentence, на ужин tells us what the food is intended for. It is a very common pattern in Russian:

• на завтрак = for breakfast
• на обед = for lunch
• на ужин = for dinner

So На ужин я запеку... means For dinner, I’ll bake..., not While at dinner...

Why doesn’t ужин change its ending here?

It actually is in the accusative case, but for a masculine inanimate noun like ужин, the accusative singular looks exactly like the nominative singular.

So:

• nominative: ужин
• accusative: ужин

That is why you do not see a visible ending change.

What exactly is запеку?

Запеку is the 1st person singular future form of the verb запечь.

So it means:

• я запеку = I will bake / I’ll roast

A useful breakdown:

• за- = a prefix