How to make spaghetti and spaghetti sauce bought in the supermarket? Does the sauce need to be fried or heated?

The sauce needs to be fried, as follows:

Preparation materials: spaghetti, sausage, cherry tomatoes, butter, tomato sauce, green and red peppers and salt.

First, cook spaghetti.

Second, put the hot oil in the wok into the sausage and flour paste.

Third, pour in the right amount of green pepper and stir well.

Fourth, pour in spaghetti and a proper amount of cherry tomatoes.

Fifth, add salt at last.

Sixth, stir fry evenly and serve.