Marinated Beef with Fresh Guacamole

Carne Asada Fiesta or Marinated Beef is a delicious Mexican dish featuring tender, marinated beef grilled to perfection and served with creamy homemade guacamole. The marinade infuses the beef with citrusy, smoky, and slightly spicy flavours, while the guacamole adds a rich and refreshing contrast. Whether enjoyed in tacos, with rice and beans, or on its own, this dish brings vibrant Mexican flavours to the table. Marinated Beef with Fresh Guacamole is brilliant starter, main dish and snack.

Prep Time 15

Cook Time 10

Marinating 2

Total Time 2 25

Servings People

Ingredients

Carne Asada (Marinated Beef):

500 g flank steak (or skirt steak)
2 large limes juice only
1 large orange juice only
3 tbsp olive oil
2 cloves garlic minced
1 tsp ground cumin
1 tsp smoked paprika
1 tsp chilli powder
½ tsp salt
½ tsp black pepper
1 tbsp fresh coriander chopped
1 tsp soy sauce optional

Guacamole:

2 large ripe avocados
1 large lime juice only
½ small red onion finely chopped
1 medium red chilli optional for heat
1 small tomato diced
1 tbsp fresh coriander chopped
½ tsp salt
¼ tsp black pepper

To Serve:

corn tortillas or flour tortillas warmed
Lime wedges
salsa
hot sauce

Instructions

Marinate the Beef:

In a bowl, whisk together lime juice, orange juice, olive oil, garlic, cumin, paprika, chilli powder, salt, pepper, coriander and soy sauce.
2 large limes, 1 large orange, 3 tbsp olive oil, 2 cloves garlic, 1 tsp ground cumin, 1 tsp smoked paprika, 1 tsp chilli powder, ½ tsp salt, ½ tsp black pepper, 1 tbsp fresh coriander, 1 tsp soy sauce
Place the steak in a shallow dish or a zip-lock bag and pour the marinade over it, ensuring the meat is well coated.
500 g flank steak
Cover and refrigerate for at least **2 hours**, or ideally overnight for deeper flavour.

Prepare the Guacamole:

Cut the avocados in half, remove the pit, and scoop the flesh into a bowl.
2 large ripe avocados
Mash the avocados with a fork until smooth but slightly chunky.
Stir in lime juice, red onion, chilli, tomato, coriander, salt and pepper. Adjust seasoning if needed.
1 large lime, ½ small red onion, 1 small tomato, 1 tbsp fresh coriander, ½ tsp salt, ¼ tsp black pepper, 1 medium red chilli
Cover and refrigerate until ready to serve.

Cook the Carne Asada:

Heat a grill or pan over **high heat**. Lightly oil the grill or pan to prevent sticking.
Remove the steak from the marinade and shake off excess liquid.
Grill for 4-6 minutes per side for medium-rare, or adjust to your preferred doneness.
Transfer to a cutting board and let it rest for 5 minutes before slicing thinly against the grain.

Serve and Enjoy:

Serve the sliced beef with guacamole on the side, or assemble in tacos with tortillas, lime wedges, and salsa.
corn tortillas, Lime wedges, salsa, hot sauce

Notes

Here are some tips to ensure your Marinated Beef with Fresh Guacamole turns out superb every time:

For the Carne Asada/Marinated Beef:

Marinate for Maximum Flavour – At least 2 hours is essential, but overnight marination will make the beef even more flavourful and tender. The citrus juices help break down the meat fibres.
Room Temperature Before Cooking – Take the marinated steak out of the fridge 30 minutes before cooking. This ensures even cooking and better caramelisation.
High Heat for a Perfect Sear – Whether grilling or pan-searing, make sure your cooking surface is very hot before adding the steak. This creates a delicious char on the outside while keeping the inside juicy.
Don’t Overcook – Flank and skirt steak are best cooked to medium-rare or medium (about 4-6 minutes per side). Overcooking can make them tough.
Rest Before Slicing – Let the steak rest for 5 minutes before cutting. This allows the juices to redistribute, keeping it tender and moist.
Slice Against the Grain – Cutting against the grain (perpendicular to the muscle fibres) ensures each bite is tender and easy to chew.

For the Guacamole:

Use Ripe Avocados – They should yield slightly when pressed but not be mushy. Overripe avocados can taste bitter, while underripe ones are too firm and bland.
Mash to Your Liking – If you like a chunkier guacamole, mash it lightly with a fork. For a smoother texture, use a spoon and mix well.
Balance the Flavours – Lime juice adds freshness, onions add a little bite, and tomatoes add sweetness. Adjust the salt and lime juice to taste.
Keep It Fresh – Guacamole can brown quickly. To keep it green, store it with a layer of plastic wrap pressed directly onto the surface to prevent oxidation.

Bonus Tips:

For an extra smoky flavour, grill the steak over charcoal or use smoked paprika in the marinade.
For a spicy kick, add finely chopped jalapeños to the guacamole or a pinch of cayenne to the marinade.
For ultimate tacos, warm the tortillas on the grill or in a dry pan for a few seconds to make them soft and pliable.

Follow these tips, and your Marinated Beef with Fresh Guacamole will be an absolute showstopper!

Nutrition