# In-N-Out Smash Burger Tacos

A high-protein, low-calorie version of In-N-Out Smashburger tacos that are quick, easy, and taste way too good for a weeknight dinner.

- Servings: 8 servings
- Total time: 30 min
- Cuisine: Mexican
- Category: Sauce & Condiment
- Language: en

## Ingredients

- 1 lb lean ground beef
- 8 small street-size flour tortillas
- 8 slices reduced-fat cheddar cheese
- Salt
- black pepper
- 1 large yellow onion, diced
- 2 tbsp butter
- 2 tbsp olive oil
- 0.75 cup plain nonfat Greek yogurt
- 0.25 cup light mayo
- 4 tbsp sugar-free ketchup
- 3 tbsp sweet relish
- 3 tbsp caramelized onions
- 1 tbsp Dijon mustard
- 1 tbsp Worcestershire sauce
- 1 tsp white vinegar
- 1 tsp garlic powder
- 1 tsp salt
- 1 tsp black pepper
- 1 -2 tbsp water to thin
- Shredded iceberg lettuce
- Extra caramelized onions

## Instructions

1. Heat butter and olive oil over medium-low heat.
2. Add diced onions and cook 15 minutes, stirring often and adding small splashes of water as needed, until deeply caramelized.
3. Set aside.
4. In a bowl, mix all sauce ingredients until smooth.
5. Thin with water if needed.
6. Divide beef into 8 equal balls.
7. Press one ball directly onto each tortilla and flatten thin.
8. Season the beef side with salt and pepper.
9. Heat a pan over medium-high.
10. Cook tacos beef-side down for 3 minutes until crispy.
11. Flip, add cheese, and cook 1–2 minutes until melted.
12. Top with sauce, extra caramelized onions, and shredded lettuce.
13. Fold and serve immediately.

## Equipment

- pan

## Tips

- To stay on track with calories, use an app like Calo.
- Toss the lettuce in some of the sauce before adding.

## Source

- Original video: https://www.instagram.com/reel/DURSZfuE2Rw/?igsh=OG13NGxrcTFnZm8x
- Recipe page: https://www.cliprecipe.com/recipe/3bd56279-7610-4270-bd0f-ac09eb21626c
- Extracted: 2026-02-05

Extracted from the video by Clip Recipe (https://www.cliprecipe.com). Quantities and steps are as stated or shown in the video. Site guide for agents: https://www.cliprecipe.com/llms.txt