Prepare the Filling: Begin by sautéing onions and garlic until fragrant. Add the ground meat, cooking it thoroughly. Then, incorporate the vegetables, seasoning with salt and pepper, and cook until they are tender yet crisp.
Assemble the Lumpia: Lay out a wrapper, place a portion of the filling near the bottom edge, and fold the sides inward. Roll tightly towards the top, sealing the edge with a bit of water or a flour paste.
Fry the Lumpia: Heat oil in a pan and fry the rolls in batches until golden brown, ensuring they are turned occasionally for even cooking.
Drain and Serve: Once cooked, drain the Lumpia on paper towels or a cooling rack and serve while hot, accompanied by your choice of dipping sauce.