Hi, Costoluto Genovese, while not a paste, is a wonderful tomato for cooking down into sauce. I have been growing it for a number of years now, and it always does well for me in my zone 4 garden. It is extrememly productive and a very pretty, medium, fluted tomato tastes great also. It is a bit seedy though, that does not bother me..
Coustrolee is large and fluted, and production is good for a large tomato. It is a bit juicy also but cooks down well.
Pantano Romanesco is another fav. I have grown for years. It is a beautiful medium/large red tomato, slightly ribbed. and has a well balanced flavor of acid/sweet tomato taste..Very productive. Slightly juicy. Love it for tomato juice also.
Amish Paste: Grown it for years, Not a true paste, but if you get the original seeds for the real AP..It is still large and blocky, and meaty with a bit of juice to it. Flavor is excellent. Very productive for me.. I saved seeds for years of the original Amish paste, but unfortunately, had a mishap with a lot of my seeds seven years ago..I reordered seeds from BC a few years back, but it is not the same Amish paste i used to grow out. The tomatoes are much smaller and plum shaped..not the same.
Japanese Black Trifelle: very productive, meaty with some juice, excellent flavor
I have grown a large number of heirloom tomatoes for sauce..Sometimes i just mix a bunch of diff. tomatoes and throw them in a pot and cook them down..Sooo good!!
Now for real pastes/plums I have grown: Opalka..Excellent meaty paste variety..
St. Jean De Angeley (Rare French Variety) very meaty and productive..Grew in my GH
Sherrill,
Romeo,
Sarnowski Polish Plum (very productive more elognated shape, rather than plum)
Cow Tit: Shaped like a cows teat
Giant Sicilian Paste: Blocky, meaty and productive
Ludmilla Red Plum: very productive
Lurleys Paste (a garden friend gave me seeds a few years back, who got unnamed seeds in Italy.)
Kenosha Paste: Not a real paste, but shaped like a plum and more juicy, very productive.
Wessells Purple Pride: Paste shape, but a bit more blocky and elognated..Is a red/purple color at the shoulders..Excellent taste and very productive
Jersey Devil, paste shape, slightly elognated, not as productive as I would have liked, prone to some disease mid season
Kukla's Portugese paste: meaty, shaped like a medium plum..Great flavor, avg production..Grown in GH
Carol Chyko's Big paste: Blocky, Blunt shape, meaty interior with right balance of juice..very good, productive, Fruits are around 12 to 16 oz..Shy to set fruit in hot weather..Better with cool nights
I have grown others, but I have a bit of a mind block and would have to check my notes ...
Hearts are also good for cooking down into pastes. They are meaty and most have few seeds..Lot's of good ones around!
Ginny