Tortellini With Peas with milk

3 tablespoons butter , divided 1/2 cup chopped onion 4 cloves garlic , minced 1 (14 ounce) can tomato sauce 2 cups sliced fresh mushrooms 1/4 cup chopped[...]

1 (50 g) package frozen, fresh meat or 1 (50 g) package frozen, fresh meat or 1 (50 g) package frozen, fresh cheese-filled egg tortellini 1 tablespoon[...]

0.5 (12 ounce) bag frozen tortellini (I used cheese tri-colored) 1 lb asparagus (cut into 1/4 inch pieces) 1/2 cup cherry tomatoes (quartered) 3/4 cup milk (I[...]