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Creamy Mexican Fajita Inspired Tuna Pasta Bake

with Bell Pepper, Caramelised Onion and Wild Rocket

Recipe Development Team
Recipe Development TeamUpdated on November 17, 2025

In Mexican cuisine, fajita refers to strips of grilled meat and veg that are fried and spiced with smoky and peppery seasonings. This Creamy Mexican Fajita Inspired Tuna Pasta Bake uses a blend of Mexican spices to give a similar smokiness to the sauce.

Tags:
Pescatarian
Allergens:
Cereals containing gluten
Wheat
Milk
Fish

The quantities provided above are averages only.

Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.

Total45 minutes
Active 30 minutes
DifficultyMedium
serving amount

1 unit(s)

Onion

1 unit(s)

Bell Pepper

180 grams

Macaroni

(Contains: Cereals containing gluten, Wheat May contain traces of: Soya)

30 grams

Mature Cheddar Cheese

(Contains: Milk May contain traces of: Milk)

1 tin(s)

Skipjack Tuna in Water

(Contains: Fish)

2 unit(s)

Garlic Clove

1 sachet(s)

Mexican Style Spice Mix

10 grams

Vegetable Stock Paste

75 grams

Creme Fraiche

(Contains: Milk)

25 grams

Sun-Dried Tomato Paste

20 grams

Wild Rocket

Not included in your delivery

20 grams

Butter

1 tbsp

Plain Flour

250 milliliter(s)

Water for the Sauce

1 tsp

Sugar for the Sauce

Energy (kJ)3120 kJ
Energy (kcal)746 kcal
Fat29.4 g
of which saturates16.6 g
Carbohydrate87.5 g
of which sugars16.3 g
Dietary Fibre7.4 g
Protein32.9 g
Salt2.7 g
Potassium372.2 mg
Calcium161.2 mg
Iron0.7 mg
Always refer to the product label for the most accurate ingredient and allergen information.
Chopping Board
Colander
Knife
Large Saucepan
Box Grater
Grater
Large Frying Pan
Oven dish

Instructions

Cook the Pasta
1

Bring a large saucepan of water to the boil with 0.5 tsp salt for the macaroni.

Meanwhile, halve, peel and thinly slice the onion. Halve the bell pepper and discard the core and seeds. Slice into thin strips.

When boiling, stir the macaroni into the water and bring back to the boil. Cook until tender, 12 mins. 

Once the pasta is cooked, drain in a colander and pop back into the pan. Drizzle with oil and stir through to stop it sticking together.

Fry the Veg
2

While the pasta cooks, heat your grill to high. Heat a drizzle of oil in a large frying pan on medium heat.

Once hot, add the sliced onion and pepper, season with salt and pepper and fry, stirring occasionally, until golden, 10-12 mins. 

Meanwhile, grate the cheese. Drain the tuna. Peel and grate the garlic (or use a garlic press). 

Once the veg is golden, add the garlic and Mexican style spice mix. Fry for another 30 secs. 

3

Add the butter to the veg pan and allow it to melt (see pantry for amount).

Next, stir in the flour (see pantry for amount). Cook until it forms a paste, 1-2 mins - you've made a roux!

Stir in the water for the sauce (see pantry for amount) a little at a time, followed by the vegetable stock paste.

4

Bring the sauce to the boil, then stir in the creme fraiche and sugar for the sauce (see pantry for amount).

Next, gently stir in the tuna. Simmer until piping hot, 1-2 mins.

Season with salt and pepper, then remove from the heat. 

5

Once cooked, stir the cooked pasta and sun-dried tomato paste into the sauce. Add a splash more water if you feel it needs it.

Transfer the tuna pasta to an appropriately sized ovenproof dish. 

Sprinkle the cheese on top of the pasta, then grill until the cheese has melted and is bubbling, 5-6 mins. 

6

Once ready, share the pasta bake between your bowls.

Serve the rocket alongside, drizzling a little olive oil over the leaves to finish. 

Enjoy!

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