Preheat your oven to 375°F (190°C).
Heat 1 tablespoon of olive oil in a skillet over medium heat.
Add 1 lb of ground beef and cook until browned.
Stir in 1 packet of taco seasoning and diced vegetables (e.g., bell peppers and onions). Cook for an additional 2-3 minutes.
Unroll the crescent roll dough and press the seams together to form a single sheet.
Place the dough on a baking sheet or casserole dish.
Spread the prepared filling evenly over the dough.
Sprinkle 1 cup of shredded cheese over the filling.
Fold the edges of the dough over the filling, leaving the center open for a rustic look.
Brush the dough with melted butter and sprinkle with sesame seeds (optional).
Bake for 20-25 minutes, or until the crescent roll dough is golden brown and flaky.
Let the dish cool for 5 minutes before slicing.
Serve warm with optional toppings like shredded lettuce, sour cream, or diced tomatoes.