Yo prefiero los calamares a la plancha con limón.

That’s right: Spanish often leaves out subject pronouns because the verb ending already shows who is doing the action.

• (Yo) prefiero = I prefer

So Yo prefiero los calamares... and Prefiero los calamares... are both correct.

Including yo can:

• add emphasis,
• create contrast,
• make the sentence clearer in context.

For example:

• Yo prefiero los calamares, pero ella prefiere el pescado.

So here, yo is optional unless the speaker wants emphasis.

Because preferir is a stem-changing verb.

In the yo form of the present tense:

• preferir → prefiero

The e in the stem changes to ie in most present-tense forms:

• yo prefiero
• tú prefieres
• él/ella prefiere
• nosotros preferimos
• vosotros preferís
• ellos prefieren

Notice that nosotros and vosotros do not have the stem change.

This is a very common pattern in Spanish.

In Spanish, it is very common to use the definite article with food, especially when talking about something in a general or familiar way.

So:

• Prefiero los calamares sounds natural in Spanish.
• In English, we often say just I prefer squid, without the.

Spanish uses the article more often than English does. Here, los calamares means something like:

• squid as a dish,
• squid in general,
• or the squid dish being discussed.

Using calamares without los is possible in some contexts, but los calamares is the most natural choice here.

Calamares means squid.

Grammatically, it is plural:

• el calamar = a squid
• los calamares = squid / squids

In restaurant Spanish, calamares often refers to squid as a dish, not necessarily to multiple individual animals in a literal sense.

So in this sentence, it means the food dish squid.

A la plancha is a very common cooking expression in Spanish.

It means:

• grilled
• griddled
• cooked on a hot metal plate

In Spain, a la plancha usually suggests food cooked on a flat hot surface with a little oil, rather than over open flames like a barbecue.

So:

• calamares a la plancha = grilled/griddled squid

It’s best treated as a fixed food expression.

Because a la plancha is the standard idiomatic expression used for this cooking style.

Literally, it comes from:

• a + la plancha

But learners should mainly remember it as a set phrase meaning:

• cooked on the griddle / grilled

Spanish often uses these fixed culinary patterns:

• a la plancha
• a la parrilla
• al horno

So even if the literal logic is not obvious at first, a la plancha is simply the normal way to say it.

Con limón means with lemon.

It usually suggests the squid is served with lemon, often a slice or wedge to squeeze over it.

So:

• calamares a la plancha con limón = grilled squid with lemon

This does not necessarily mean a lemon sauce. It usually just means lemon is accompanying the dish.

Sometimes, but it would not mean exactly the same thing.

• con limón = with lemon, served with lemon
• al limón = in a lemon style / with a lemon sauce or lemon-based preparation

So in this sentence, con limón is the natural choice if you mean the squid comes with lemon to add or squeeze on top.

It describes the dish calamares a la plancha as a whole.

In other words:

• the squid is cooked a la plancha
• and it is served con limón

So the structure is basically:

• Yo prefiero = I prefer
• los calamares = squid
• a la plancha = grilled/griddled
• con limón = with lemon

It would be understood as grilled squid with lemon, not as lemon somehow modifying only plancha.

The given order is very natural:

• Yo prefiero los calamares a la plancha con limón.

You can sometimes move elements for emphasis, but the standard order sounds best here.

For example:

• Prefiero los calamares a la plancha con limón. ← very natural
• Con limón, prefiero los calamares a la plancha. ← possible, but more marked or contrastive

So yes, Spanish has some flexibility, but the original word order is the most neutral and natural.

Because the personal a is used mainly before specific human beings (and sometimes pets or personified beings), not before things or food.

Compare:

• Veo a María. = I see María.
• Veo los calamares. = I see the squid.

Since los calamares are not people, there is no personal a here.

Also, don’t confuse that with a la plancha, where the a is part of a fixed expression.

It can be either, depending on context.

The present tense in Spanish can express:

• a general preference: I prefer squid
• a current choice: I’d rather have squid

So Yo prefiero los calamares a la plancha con limón could mean:

• this is what I generally like best, or
• this is what I want/prefer in this situation

Context tells you which one is meant.

Limón is pronounced with the stress on the second syllable:

• li-MÓN

The accent mark shows that the stress falls on the last syllable.

Without the written accent, Spanish stress rules would suggest a different pronunciation, so the accent is necessary.

Also, the written accent does not change the vowel quality much; it mainly tells you where the stress goes.

A typical Spain pronunciation would be roughly:

• yo pre-fye-ro los ka-la-MA-res a la PLAN-cha kon lee-MON

A few helpful notes:

• prefiero has a pye sound in the middle
• ll in limón is not relevant here, but yo is usually pronounced with a y-like sound
• j does not appear in this sentence
• z and soft c are not in these particular words either, so there is no Spain-specific th sound here

The main pronunciation point for learners is usually:

• prefiero = three syllables
• limón = stress on the end

Yes, absolutely. That is probably the most natural version in many situations.

• Prefiero los calamares a la plancha con limón.

Spanish often sounds more natural without the subject pronoun unless there is a reason to stress it.

So both are correct:

• Yo prefiero... ← slightly more emphatic
• Prefiero... ← neutral and very common

Yes. After the verb prefiero, the rest functions as the thing being preferred.

You can think of it as one noun phrase:

• los calamares a la plancha con limón

Inside that phrase:

• los calamares is the main noun
• a la plancha describes how they are cooked
• con limón adds another description

So the whole sentence structure is:

• Yo = subject
• prefiero = verb
• los calamares a la plancha con limón = direct object

Yes, very much so. It’s a very familiar dish in Spain, especially in seafood restaurants, tapas bars, and coastal areas.

That cultural familiarity is one reason the sentence sounds very natural in Spain Spanish. A native speaker would immediately understand calamares a la plancha as a standard food item.