Dice the onion and mince the garlic.

Heat cooking oil in a large skillet over medium heat.

Brown the diced onion, minced garlic, and ground beef in the skillet.

Drain off any excess fat.

Add canned tomatoes, tomato paste, sugar, salt, and oregano to the skillet.

Stir to combine all ingredients.

Reduce heat to low and simmer the sauce for 1 hour, stirring occasionally.

Preheat oven to 375°F (190°C).

Cook lasagne noodles according to package directions.

In a bowl, combine ricotta cheese and grated cheddar cheese.

In a baking dish, spread a layer of meat sauce.

Top with a layer of lasagne noodles.

Spread a layer of ricotta cheese mixture.

Sprinkle with mozzarella and parmesan cheese.

Repeat layers until all ingredients are used, ending with a layer of meat sauce and cheese on top.

Cover the baking dish with foil.

Bake for 30 minutes.

Remove the foil and bake for another 15-20 minutes, or until the cheese is melted and bubbly.

Let stand for 10 minutes before serving.