Spaghetti with Sliced Sausages in Tomato Sauce

Cook the spaghetti in salted boiling water until al dente. Drain, reserving a splash of the pasta water.

Finely dice the onion and mince the garlic. Sauté the onion in a skillet with vegetable oil over medium heat until translucent, then toss in the garlic and cook for another minute.

Slice the sausages into rounds. Brown them until lightly golden.

Stir in the tomato paste, water, sugar, salt, pepper, and oregano. Mix well and let simmer over medium heat for about 5 minutes until the sauce thickens slightly.

Combine the spaghetti with the sauce, tossing well and adding a splash of the reserved pasta water to make it glossy and cohesive.