No café da manhã, eu comi pão com ovo.

No is a contraction of em + o, so it literally means in the.

• em = in / at / on
• o = the

So:

• no café da manhã = at breakfast / literally in the breakfast

In Portuguese, contractions like this are very common:

• em + o = no
• em + a = na
• de + o = do
• de + a = da

So no is not the English no meaning not.

Café da manhã is the normal Brazilian Portuguese expression for breakfast.

Literally, it means something like morning coffee or coffee of the morning:

• café = coffee
• da = de + a = of the
• manhã = morning

Even though it literally contains coffee, the whole expression means breakfast, not just the drink.

So:

• tomar café da manhã = to have breakfast
• no café da manhã = at breakfast / for breakfast

Because café da manhã is a fixed expression.

• de manhã by itself usually means in the morning
• da manhã inside café da manhã is part of the noun phrase breakfast

Compare:

• Eu estudo de manhã. = I study in the morning.
• O café da manhã estava ótimo. = The breakfast was great.

So de manhã and da manhã are different structures with different functions.

Not always. Portuguese often drops subject pronouns when the verb ending already makes the subject clear.

• eu comi = I ate
• comi by itself already clearly means I ate

So both are possible:

• No café da manhã, eu comi pão com ovo.
• No café da manhã, comi pão com ovo.

Including eu can add clarity, emphasis, or just sound more natural in some contexts. In everyday Brazilian Portuguese, leaving it out is very common.

Comi is the first-person singular form of the verb comer (to eat) in the pretérito perfeito, which is usually the simple past.

• comer = to eat
• eu comi = I ate

This tense is used for a completed action in the past.

Examples:

• Eu comi pão. = I ate bread.
• Ela comeu fruta. = She ate fruit.

In your sentence, it means the eating happened as a completed event.

Because comi refers to a completed action: I ate.

• comi = I ate
• comia = I was eating / I used to eat

So:

• No café da manhã, eu comi pão com ovo. = At breakfast, I ate bread with egg.
• No café da manhã, eu comia pão com ovo. = At breakfast, I used to eat bread with egg / I was eating bread with egg.

If you are describing one specific finished meal, comi is the natural choice.

Pão com ovo means bread with egg or more naturally an egg sandwich / bread and egg, depending on context.

In Portuguese, com (with) is very commonly used in food combinations:

• café com leite = coffee with milk
• pão com manteiga = bread with butter
• arroz com feijão = rice and beans / rice with beans

So pão com ovo sounds very natural in Brazilian Portuguese.

If you said pão e ovo, it would sound more like just listing two separate foods: bread and egg.

Portuguese often omits the indefinite article when talking about food in a general way.

So:

• Eu comi pão com ovo. = I ate bread with egg.
• Eu comi um pão com ovo. = I ate a bread-with-egg item / an egg sandwich.

Both can be correct, but they feel a little different:

• without um = more general, focusing on what you ate
• with um = more specific, often suggesting one unit, like one sandwich or roll

In casual speech, dropping the article with foods is very common.

Because com ovo works as a natural food combination, and Portuguese often leaves out articles in that kind of expression.

Compare:

• pão com ovo
• macarrão com queijo
• carne com batata

This is similar to how English often says bread with egg, pasta with cheese, etc., without needing an/the every time.

You could sometimes hear more specific versions, like:

• pão com um ovo frito = bread with a fried egg
• pão com o ovo que sobrou = bread with the egg that was left over

But in the basic expression, no article is needed.

Yes. Portuguese allows some flexibility here.

Your sentence:

• No café da manhã, eu comi pão com ovo.

A very natural alternative:

• Eu comi pão com ovo no café da manhã.

Both are correct. The difference is mostly emphasis:

• No café da manhã, ... puts the time/context first
• Eu comi ... no café da manhã starts with the subject and action

The comma after No café da manhã is normal because it is an introductory phrase.

It acts as a time/context expression telling you when the action happened.

It answers the question:

• When did you eat bread with egg?
• At breakfast.

So the sentence structure is basically:

• No café da manhã = time/context
• eu comi = subject + verb
• pão com ovo = what was eaten

These words can be tricky for English speakers because of the nasal sounds and stress.

A rough guide:

• pão: sounds somewhat like powng, with a nasal ending
• café: ka-FEH (stress on the last syllable)
• manhã: roughly ma-NYÃ, with a nasal final vowel

A few notes:

• ã is nasal
• nh sounds like the ny in canyon
• the accent in café shows stress on the last syllable

So:

• café da manhã ≈ ka-FEH da ma-NYÃ

This is only an approximation, but it helps as a starting point.

Because Portuguese spelling marks stress and vowel quality more clearly than English.

In this sentence:

• café has an acute accent (é) to mark stress and vowel quality
• pão has a tilde (ã) to show nasalization
• manhã also has ã for nasalization

These marks are part of the correct spelling, not optional decoration.

For learners, they are important because they often affect pronunciation directly.

Yes. Pão com ovo is a very common, simple, everyday food in Brazil.

It usually means bread with egg, often as a quick breakfast or snack. Depending on the bread and preparation, it may feel close to:

• egg bread
• an egg sandwich
• a bread roll with egg

So this sentence sounds very natural and culturally ordinary in Brazilian Portuguese.