Preheat the oven to 375°F and lightly grease a pie plate.
Heat a large skillet over medium-high heat and brown half a pound of ground beef. Add half a cup of diced onions and half of a tablespoon of freshly minced garlic. Season with half a tablespoon of chili powder, one teaspoon of ground cumin, half a teaspoon of paprika, half a teaspoon of salt, and half a teaspoon of freshly ground black pepper. Cook until the meat is browned all the way through. Drain any excess fat.
Place one ten-inch tortilla into the pie plate, allowing the tortilla to cover the bottom of the pie plate and go up the sides. Top with half a cup of refried beans and spread evenly. Spoon the taco meat over the beans and place the second tortilla on top, pressing down around the sides gently.
Bake in the preheated oven for fifteen minutes or until lightly browned.
Remove from the oven and spread half a cup of salsa over the top. Sprinkle with one cup of shredded Mexican cheese, half a cup of diced tomatoes, one-quarter cup of chopped green onions, and two tablespoons of finely diced jalapeno peppers. Bake until the cheese is melted.
Remove from the oven and allow to cool. Garnish with freshly chopped cilantro and serve withsour cream.