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Beef and Onion Fajitas

A beef fajita dish with onions, peppers, and a lime‑worcestershire glaze.

From the Recipes Wiki (Fandom) · 20 ingredients
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Why it works: Onion and garlic match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 29,058 recipes. Both carry furaneol, which smells caramel, strawberry. The science ↓

Beef and Onion Fajitas

Time10 minutes

Ingredients

Directions

Marinate

  1. Combine all marinade ingredients in a food processor and blend until smooth.

  2. Reserve half the marinade and refrigerate.

  3. Spread the remaining half of the marinade on the steak, coating all sides.

  4. Cover and marinate in the refrigerator for several hours.

  5. Remove the steak and discard the marinade.

Cook the beef and vegetables

  1. Grill the steak on high heat for 10 minutes.

  2. Heat butter and olive oil in a large skillet over high heat.

  3. Add onions and peppers and sauté until tender.

  4. Mix the reserved marinade into the onion mixture and heat through.

  5. Slice the steak across the grain into narrow strips.

  6. Toss the steak strips with the onion mixture in the skillet.

Assemble and serve

  1. Fill tortillas with the beef‑onion combination.

  2. Squirt lime juice over the filling.

  3. Top with pepper jack cheese, cheddar cheese, sour cream, and salsa.

Nutrition, whole recipe (rough)

1582Calories
79 gProtein
65 gFat
169 gCarbs
What these numbers assume: 18 portions
IngredientPortion assumedkcal
Flour1 cup (125g) all-purpose455
Beef100g cooked250
Tortilla1 medium flour (45g)140
Olive Oil1 tbsp (14g)119
Cheese1 oz (28g) cheddar113
Cheddar Cheese1 oz (28g)113
Butter1 tbsp (14g)102
Yogurt170g plain Greek100
Sugar1 tbsp (12.5g) granulated49
Onion1 medium (110g)44
Bell Pepper1 medium (119g)31
Tomato1 medium (123g)22
Limejuice of 1 lime (44ml)11
Soy Sauce1 tbsp (15ml)9
Chili1 tsp (2.7g)8
Pepper1 tsp ground (2.3g)6
Black Pepper1 tsp ground (2.3g)6
Garlic1 clove (3g)4

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.

Recipe from the Recipes Wiki (Fandom).

Steps grouped into stages for easier reading; the method is the source's own.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Onion + garlictop 1% of all pairs
    Smell alikestrong
    Cooked together29,058 recipes

    Shared aroma: furaneol (caramel, strawberry).

  2. Pepper + limetop 2% of all pairs
    Smell alikestrong
    Cooked together3,491 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  3. Clove + peppertop 5% of all pairs
    Smell alikestrong
    Cooked together17,451 recipes

    Shared aroma: ethyl octanoate (fruity, wine).

  4. Clove + limetop 7% of all pairs
    Smell alikestrong
    Cooked together909 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Garlic + limetop 7% of all pairs
    Smell alikestrong
    Cooked together3,411 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Top sirloin steak
Provides the main meat, which becomes tender and juicy when sliced thinly across the grain.
Lime juice
Adds acidity that brightens the flavor and helps tenderize the marinated meat.
Garlic cloves
Contribute pungent aroma and savory depth to the marinade.
Brown sugar
Adds sweetness and helps the surface brown during high-heat cooking.
Pepper jack cheese
Melts over the hot filling, adding fat and creamy texture.
Onions
Soften and sweeten as they sauté, adding body to the filling.

The step that matters

Grilling the steak on high heat. Searing over high heat browns the surface through the Maillard reaction, building flavor. Slicing across the grain afterward shortens the muscle fibers so the strips stay tender.

Swap the clove

How well each one fits the dish's main ingredients (onion, garlic, pepper, lime, sauce, sugar, butter):

  1. Cuminfits better
  2. Corianderfits better
  3. Parsleyfits better
  4. Clovethe original

Fit is the average pairing score against onion, garlic, pepper, lime, sauce, sugar, butter. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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