A couple sausages, 2 bell peppers, 2 russet potatoes, and 2 garlic cloves make a fantastic meal for like $10 that makes several servings. I get like a week out of it. Takes about 1hr.
Dice everything, boil the potatoes in water and salted water until fork tender. Strain and dry the potatoes.
Meanwhile dice your garlic cloves and gently brown them in some oil.
Combine your oil, potatoes, and peppers and mix evenlyish. Spread on a baking tray. Dice your sausage and spread the chunks out on top.
Into the oven at 450°F for 20m. At 20m flip the sausage chunks over so both sides brown (optional but worth the effort). At least rotate the tray 180°. Wait another 20m and you're good to go.
Serve plain or use it as a sandwich filler. You can reheat it on a skillet and make an omelette for breakfast.