How to prepare smashed tacos

Ingredients:
1 pound ground beef,
1 medium onion,
1/2 cup fresh cilantro,
1 tsp red pepper,
1 tsp salt,
1 tsp smoked paprika,
tortilla bread,
lettuce,
tomato,
cucumber,
tahini sauce:
I made some water, salt, black pepper, Olive oil, half a lemon, tahini.