Cook the Ground Beef:
Heat olive oil in a large skillet over medium heat. Add the ground beef and cook, breaking it up with a spatula, until browned and cooked through, about 6-8 minutes. Drain excess fat and set the beef aside.

Prepare the Dip Base:
In the same skillet, add the diced onion and garlic. Sauté for 2-3 minutes until softened and fragrant. Add the cream cheese, sour cream, cheddar cheese, mozzarella cheese, chopped jalapeños, chili powder, cumin, salt, pepper, and hot sauce (if using). Stir until the cheese is melted and the mixture is smooth and creamy.

Combine the Beef and Dip:
Return the cooked ground beef to the skillet and stir until well combined. Cook for another 2-3 minutes to allow the flavors to meld together.

Optional Topping:
In a small bowl, mix the panko breadcrumbs with melted butter. Sprinkle the breadcrumb mixture evenly over the dip. Add additional shredded cheddar cheese on top.

Bake:
Preheat your oven to 375°F (190°C). Transfer the dip to a baking dish (such as an 8×8-inch dish) and bake for 15-20 minutes, or until the dip is bubbling and the topping is golden brown.

Serve:
Remove the dip from the oven and let it cool for a few minutes before serving. Garnish with chopped green onions if desired. Serve with tortilla chips, crackers, or sliced veggies for dipping.