Heat oil over medium-high heat in a skillet or grill pan until shimmering, about 3 minutes.
2 tbsp oil
While the oil is heating up, season the steak on both sides with salt, pepper, garlic powder, and turmeric powder.
4 ounces thinly sliced steak, about 1/4 inch thick, salt, pepper, garlic powder, and turmeric
Place steak in the pan and fry, browning evenly on both sides, about 1 1/2 minute per side. Once the steak is cooked to your desired doneness, remove from the skillet and place on a plate and cover to keep warm. See notes.
Slice the telera or bolillo through the center to create a top and bottom for your torta. Remove some crumbs from the white, soft interior if desired.
1 telera or bolillo roll
Spread butter on the soft, white side of both halves. Place the bread butter side down in the skillet. Toast until the bread is a light, golden brown, about 25-30 seconds. Flip to warm and toast the other sides of the bread, about 15 seconds more. Remove from the skillet.
1 tbsp unsalted butter
On one half of the buttered side of the bread, spread your refried beans and top with cheese. Place this half back in your skillet, cheese side down for about 15-20 seconds. This will toast and melt the cheese. Remove from the skillet with a spatula.
1/4 cup refried beans, 1 slice cheese
Thinly slice your steak into strips and place on top of your melted cheese. Layer on the sliced onions, tomatoes, avocado slices, jalapeño peppers (if using), and lettuce.
1/2 avocado, 1/8 cup thinly sliced onions, 2 slices tomato, 4 slices pickled jalapeños, 2 leafs lettuce
Spread mayonnaise on the other half of your bread and place on top!
1 tbsp mayonnaise
If you wish, you can toast the sandwich as a whole in your skillet once more to warm the bread through or make it extra toasty. Or enjoy immediately!