diff --git a/Francesco.Recipes.World/Models/BackendModels/Category/Category.cs b/Francesco.Recipes.World/Models/BackendModels/Category/Category.cs
new file mode 100644
index 0000000..64934a2
--- /dev/null
+++ b/Francesco.Recipes.World/Models/BackendModels/Category/Category.cs
@@ -0,0 +1,10 @@
+namespace Francesco.Recipes.World.Models.BackendModels.Category
+{
+    using Francesco.Recipes.World.Models.BackendModels.Recipe;
+    public class Category
+    {
+        public Guid Id { get; set; }
+        public string? Name { get; set; }
+        public virtual ICollection<Recipe> Recipes { get; set; } = new List<Recipe>();
+    }
+}
diff --git a/Francesco.Recipes.World/Models/BackendModels/ITimeStampedEntity.cs b/Francesco.Recipes.World/Models/BackendModels/ITimeStampedEntity.cs
new file mode 100644
index 0000000..baa9f35
--- /dev/null
+++ b/Francesco.Recipes.World/Models/BackendModels/ITimeStampedEntity.cs
@@ -0,0 +1,9 @@
+namespace Francesco.Recipes.World.Models.BackendModels
+{
+    public interface ITimeStampedEntity
+    {
+        DateTime CreatedAt { get; set; }
+
+        DateTime? ModifiedAt { get; set; }
+    }
+}
diff --git a/Francesco.Recipes.World/Models/BackendModels/Ingredient/Ingredient.cs b/Francesco.Recipes.World/Models/BackendModels/Ingredient/Ingredient.cs
new file mode 100644
index 0000000..5a3dfc9
--- /dev/null
+++ b/Francesco.Recipes.World/Models/BackendModels/Ingredient/Ingredient.cs
@@ -0,0 +1,9 @@
+namespace Francesco.Recipes.World.Models.BackendModels.Ingredient
+{
+    public class Ingredient
+    {
+        public Guid Id { get; set; }
+        public string? Name { get; set; }
+        public string? Unit { get; set; }
+    }
+}
diff --git a/Francesco.Recipes.World/Models/BackendModels/Instruction/Instruction.cs b/Francesco.Recipes.World/Models/BackendModels/Instruction/Instruction.cs
new file mode 100644
index 0000000..62ba576
--- /dev/null
+++ b/Francesco.Recipes.World/Models/BackendModels/Instruction/Instruction.cs
@@ -0,0 +1,11 @@
+namespace Francesco.Recipes.World.Models.BackendModels.Instruction
+{
+    using Francesco.Recipes.World.Models.BackendModels.Recipe;
+    public class Instruction
+    {
+        public Guid Id { get; set; }
+        public string? StepDescription { get; set; } 
+        public string? StepNumber { get; set; }
+        public virtual Recipe Recipe { get; set; } = new();
+    }
+}
diff --git a/Francesco.Recipes.World/Models/BackendModels/Rating/Rating.cs b/Francesco.Recipes.World/Models/BackendModels/Rating/Rating.cs
new file mode 100644
index 0000000..8d483be
--- /dev/null
+++ b/Francesco.Recipes.World/Models/BackendModels/Rating/Rating.cs
@@ -0,0 +1,7 @@
+namespace Francesco.Recipes.World.Models.BackendModels.Rating
+{
+    public class Rating
+    {
+
+    }
+}
diff --git a/Francesco.Recipes.World/Models/BackendModels/Recipe/Recipe.cs b/Francesco.Recipes.World/Models/BackendModels/Recipe/Recipe.cs
new file mode 100644
index 0000000..3bd978c
--- /dev/null
+++ b/Francesco.Recipes.World/Models/BackendModels/Recipe/Recipe.cs
@@ -0,0 +1,19 @@
+namespace Francesco.Recipes.World.Models.BackendModels.Recipe
+{
+    using Francesco.Recipes.World.Models.BackendModels.Instruction;
+    using Francesco.Recipes.World.Models.BackendModels.RecipeIngredient;
+
+    public class Recipe
+    {
+        public Guid Id { get; set; }
+        public string? Name { get; set; }
+        public string? Description { get; set; }
+        public string? Difficulty { get; set; }
+        public int Servings { get; set; }
+        public TimeSpan PreparationTime { get; set; }
+        public TimeSpan CookingTime { get; set; }
+        public virtual ICollection <RecipeIngredient> RecipeIngredients { get; set; } = new List<RecipeIngredient>();
+        public virtual ICollection <Instruction> Instructions { get; set; } = new List<Instruction>();
+        
+    }
+}
diff --git a/Francesco.Recipes.World/Models/BackendModels/RecipeIngredient/RecipeIngredient.cs b/Francesco.Recipes.World/Models/BackendModels/RecipeIngredient/RecipeIngredient.cs
new file mode 100644
index 0000000..79dea52
--- /dev/null
+++ b/Francesco.Recipes.World/Models/BackendModels/RecipeIngredient/RecipeIngredient.cs
@@ -0,0 +1,11 @@
+namespace Francesco.Recipes.World.Models.BackendModels.RecipeIngredient
+{
+    using Francesco.Recipes.World.Models.BackendModels.Ingredient;
+    using Francesco.Recipes.World.Models.BackendModels.Recipe;
+    public class RecipeIngredient
+    {
+        public Guid Id { get; set; }
+        public virtual Recipe Recipe { get; set; } = new ();
+        public virtual Ingredient Ingredient { get; set; } = new ();
+    }
+}
diff --git a/Francesco.Recipes.World/Models/ErrorViewModel.cs b/Francesco.Recipes.World/Models/ErrorViewModel.cs
index 19a8f0f..3f071fd 100644
--- a/Francesco.Recipes.World/Models/ErrorViewModel.cs
+++ b/Francesco.Recipes.World/Models/ErrorViewModel.cs
@@ -1,4 +1,4 @@
-namespace Francesco.Recipes.World.Models
+namespace Francesco.Recipes.World.Models
 {
     public class ErrorViewModel
     {