Step 1

Heat oven to 200C/180C fan/gas 6 and heat the oil in a large pan. Add the onion and cook for a few mins to soften. Add the garlic and beef, and cook until the meat is browned – break it up with a spoon as it cooks. Add the tomatoes, oregano, stock cube and ketchup. Season well, give everything a good stir and cover with a lid. Simmer for 30 mins.

Step 2

Meanwhile, halve the peppers and scoop out the seeds and white membrane. Place cut-side up in a roasting tin, season and bake for 20 mins.

Step 3

When the mince is cooked, divide it between the softened peppers. Return to the oven for 10 mins, sprinkled with cheese. Scatter with basil leaves before serving.