Canola Oil (Best Option)
1 tablespoon per 1 tablespoon of olive oilCanola oil is high in monounsaturated fats similar to olive oil, making it a good functional replacement in cooking applications like Shepherd's Pie. It has a high smoke point, which allows for effective sautéing without burning.
When using canola oil, ensure even heating to avoid any greasy residue in the filling. It blends seamlessly with the other ingredients, maintaining the dish's texture and moisture balance.
Compared to olive oil, canola oil does not impart any fruity or peppery notes, resulting in a slightly more neutral flavor profile but preserving the overall savory character of the dish.