Después de cenar, me gusta pasear por el barrio con mi familia.

Because gustar works differently from English to like.

In Spanish, gustar literally works more like to be pleasing to. So:

• Me gusta pasear = Walking is pleasing to me / I like walking

The me is an indirect object pronoun meaning to me.

Common forms are:

• me gusta = I like
• te gusta = you like
• le gusta = he/she likes, or you like (formal)
• nos gusta = we like
• os gusta = you all like (used in Spain)
• les gusta = they like, or you all like

So in this sentence, me gusta is exactly what you need for I like.

Because pasear is an infinitive, and an infinitive acts like a singular idea or activity.

So:

• Me gusta pasear = I like walking / I like to go for walks

Even though walking can happen many times, grammatically pasear is treated as one activity, so Spanish uses gusta, not gustan.

Compare:

• Me gusta pasear. = I like walking.
• Me gustan los paseos. = I like walks.

In the second sentence, los paseos is plural, so you use gustan.

After gustar, Spanish normally uses the infinitive to talk about liking an activity.

So you say:

• Me gusta pasear.
• Me gusta leer.
• Me gusta cocinar.

This is different from English, which often uses -ing:

• I like walking.
• I like reading.
• I like cooking.

Spanish usually uses the infinitive where English uses the -ing form in this kind of sentence.

It means after dinner or more literally after eating dinner / after having dinner.

Breakdown:

• después de = after
• cenar = to have dinner / to eat dinner

In Spanish, after después de, you often use an infinitive when the subject stays the same:

• Después de cenar, me gusta pasear. = After having dinner, I like to go for a walk.

This is very common. Similar examples:

• Después de trabajar = after working
• Después de estudiar = after studying
• Después de comer = after eating lunch / after eating

Because Spanish often omits subject pronouns when they are already clear from the verb or context.

So instead of saying:

• Yo, después de cenar, me gusta... ❌

you simply say:

• Después de cenar, me gusta pasear... ✅

The idea of I is already clear from me gusta and the overall context.

Spanish often leaves out pronouns like yo, tú, nosotros, etc., unless you want emphasis or contrast.

Both can be possible in some contexts, but they do not feel exactly the same.

In this sentence, pasear por el barrio means:

• to walk around the neighborhood
• to stroll through the neighborhood

Here, por suggests movement through an area.

By contrast:

• en el barrio = in the neighborhood

That sounds more like location than movement.

So:

• Pasear por el barrio = stroll around the neighborhood
• Vivo en el barrio = I live in the neighborhood

With verbs of movement like pasear, caminar, or andar, por is very common when you mean around/through a place.

Spanish uses the definite article el/la/los/las more often than English does.

So por el barrio is natural Spanish for:

• around the neighborhood

Even when English might sometimes omit the, Spanish often keeps it.

A few similar examples:

• Voy al supermercado. = I’m going to the supermarket.
• Estoy en la cocina. = I’m in the kitchen.
• Paseamos por el parque. = We walk through the park.

So el barrio sounds natural and complete here.

Because the speaker means with my family, specifically my own family.

• con mi familia = with my family

If you said con la familia, it would usually mean:

• with the family

That could sound more general, or refer to a specific family already mentioned in the conversation.

Spanish often uses a possessive like mi, tu, su, etc. when talking about close personal relationships:

• mi madre
• mi hermano
• mi familia

So con mi familia is the natural choice here.

In this sentence, pasear is closer to:

• to go for a walk
• to take a stroll
• to walk around leisurely

It is not just any kind of walking from one place to another.

For example:

• Caminar = to walk
• Pasear = to stroll / to go for a walk / to walk around for pleasure

In Spain, pasear is very common for this idea of walking leisurely, often with family, after dinner, or around town.

So me gusta pasear has a pleasant, leisurely feeling.

Because Después de cenar is an introductory time expression.

In English, you also often write:

• After dinner, I like to go for a walk...

Spanish commonly uses a comma after an introductory phrase like this, especially in careful writing.

So:

• Después de cenar, me gusta pasear...

is perfectly natural punctuation.

In less formal or very short sentences, commas can sometimes be omitted, but here the comma is standard and clear.

Yes, it sounds very natural in Spain Spanish.

A few reasons:

• cenar is the normal verb for to have dinner
• pasear is very common in Spain for going for a stroll
• el barrio is a very natural way to refer to the neighborhood

The whole sentence has a very everyday, Spain-like feel: going for a walk with the family after dinner.

A speaker from Latin America would also understand it easily, but in some regions they might choose slightly different wording, such as using caminar more often than pasear.

Yes, you could.

• Me gusta pasear... = normal, neutral
• A mí me gusta pasear... = I like walking / As for me, I like walking

The phrase a mí adds emphasis or contrast.

For example:

• A mi hermano no le gusta salir, pero a mí me gusta pasear por el barrio. = My brother doesn’t like going out, but I like walking around the neighborhood.

So in your original sentence, a mí is not necessary, but it is possible if you want emphasis.