Pesto Artichoke Spinach Lasagna with onion

1 (16 ounce) package lasagna noodles, partially cooked according to package directions 3 tablespoons olive oil 1 1/2 cups onions , chopped 3 garlic cloves ,[...]

2 (15 ounce) cans crushed tomatoes 1 (6 ounce) can tomato paste 2 tablespoons garlic , chopped 1/2 cup onion , diced 5 tablespoons olive oil 1 tablespoon[...]