# In-N-Out Smashburger Tacos

These smash burger tacos are quick, easy, high-protein, and taste way too good for a weeknight dinner, with the same classic flavors made at home in under 30 minutes.

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

## Ingredients

- 1 lb lean ground beef (93/7)
- 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 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 for 15 minutes, stirring often and adding small splashes of water as needed, until deeply caramelized.
3. Set caramelized onions aside.
4. In a bowl, mix all sauce ingredients until smooth.
5. Thin sauce with water if needed.
6. Divide beef into 8 equal balls.
7. Press one beef 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
- bowl

## Tips

- Add small splashes of water as needed while caramelizing onions.
- Thin the sauce with water if needed.
- Toss the lettuce in some of the sauce before adding.

## Source

- Original video: https://youtube.com/shorts/LH3rxhyUxi8?si=oXbqB0J0mb0VkZUw
- Recipe page: https://www.cliprecipe.com/recipe/fe3622f5-896d-430f-87d5-6518a38a9acd
- Extracted: 2026-03-29

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