Get 10 slices of bread and make this! Everyone asks for more!

Hello everyone, another amazing Sandwich that y'all are gonna love and they are so delicious and very easy to make. I guarantee you its going to be you favorite. I hope you make it and enjoyyyy! Ingredients: 10 slices of white bread 10 cheese slices 500grms minced beef 1/2 white onion, chopped 1/2 green bell pepper, chopped 1 galic clove, minced 2tsp mustard 3/4 cup ketchup 2tbsp brown sugar or granulated sugar 1/2tsp salt 1/4tsp black pepper 1 tbsp butter and more to spread on slices