Combine flour and water in a bowl.

Knead the mixture until it forms a smooth ball of dough.

Cover the dough with a damp cloth or plastic wrap.

Let the dough rest in a warm place for 30 minutes.

Bring a large steamer of water to a boil.

Divide the dough into 12-18 equal pieces.

Roll each piece into a small, thin circle.

In a separate bowl, combine hamburger, diced onion, diced daikon radishes, chopped spinach, minced garlic, grated ginger, chopped spring onions, chopped coriander leaves, and salt.

Mix the filling ingredients thoroughly.

Place a spoonful of the meat filling in the center of each dough circle.

Fold the dough in half to create a semi-circle.

Crimp the edges to seal the filling inside.

Line the steamer with lettuce leaves or baking paper.

Place the momos in the steamer, ensuring they don't touch each other.

Steam the momos over high heat for 30 minutes, or until cooked through.

While the momos are steaming, prepare the dipping sauce by combining soy sauce, vinegar, and chili oil (optional) in a bowl.

Shred fresh ginger and add it to the dipping sauce.

Mix the ingredients for the salsa: diced cherry tomatoes, chopped coriander leaves, and sliced spring onion.

Combine the salsa ingredients just before serving.

Serve the steamed momos hot with the dipping sauce and salsa on the side.