Melt 1 tablespoon of butter in a large pot over medium-high heat. Add the onions to the melted butter and stir until translucent.
Add ground beef and fry with the onions. Add salt and black pepper to taste.
Add the pasta and add water until it is 1/2 inch above the pasta level. Simmer.
In a small bowl, mix the yogurt with 2 to 3 tablespoons of salt and the garlic.
In a small pot, mix 1/2 cup butter with the paprika. Just before the pasta is ready, heat butter mixture until it melts and foams up.
Drain pasta mixture. For each serving, place pasta mixture on the plate, cover with the yogurt mixture, then drizzle the butter mixture over that.
Garnish with mint and paprika.