The cubanelles also have a distinct tapered feature at the tail-end. The cubanelle pepper has a sweet taste with a little more heat than a bell pepper. Use mixed colors and cut bell peppers into long thin stripes since they have much thicker walls than Italian frying peppers. Cubanelle peppers, better known as Italian frying peppers, are very mild and perfect for sautéing.If you’ve eaten a sausage and pepper sub, you’ve eaten Cubanelles. In the garden, Cubanelle peppers are unique, often growing in imperfect shapes and changing color from green/yellow to shades of orange to red. Snap or cut off pepper stem at plant, try not to nick or bruise peppers this will cause them to rot more quickly. Cubanelle peppers typically come in green and yellow colors. Unlike bell peppers, which have thick walls, the cubanelle has thin walls, ... whether they are ripe or not. Italian Frying Peppers Substitutes. The thin-walled pepper is especially suited for quick cooking. Banana peppers, which range from yellow to ripening red, are generally mild enough to eat raw.Like sweet bell peppers, they are popular in salads, on sandwiches, and on pizza. Unlike many unripe peppers which are bitter in flavor, Italian frying peppers are sweet at every stage from green to yellow to red. They are mature when they have firm texture and thick walls. However, cubanelle peppers are fatter but shorter than banana peppers. These peppers typically measure 4 to 6 inches in height and 2 inches in width. How to Tell When Cayenne Peppers Are Ripe. Quick & Easy Recipe With Italian Frying Peppers If you can’t get fresh Italian Frying Peppers you can substitute them with cubanelle peppers and even with regular bell pepper. Italian frying peppers are a type of Capsicum annum variably referred to as Cubanelle, Italianelles or Sweet Italian Long peppers. Additionally, cubanelle peppers have thinner skin than banana peppers. Most peppers ripen 70-85 days from planting; some may take up to 150 days. Growing hot peppers, like cayenne varieties, can be tricky, especially in climates with mild summers. Best way to pick your pepper? Popular in dishes of Spanish, Italian, and Slavic descent, many cooks prefer it to bell types. Scoville Rating: 100 – 1,000.