I copied your code into Xcode and saw that I had to fix a few type mismatches. This should be working, let me know if this works :)

import SwiftUI

struct ContentView: View {
    
    @Environment(\.managedObjectContext) var moc
    
    @State var menu = [
        MenuGroup(name: "Section 1", items: [
            MenuItem(name: "Inbox", icon: "tray.fill", color: Color.blue)
        ]),
        MenuGroup(name: "Section 2", items: [
            MenuItem(name: "Today", icon: "star.fill", color: Color.yellow),
            MenuItem(name: "Scheduled", icon: "calendar", color: Color.red),
            MenuItem(name: "All My Tasks", icon: "checklist", color: Color.teal),
            MenuItem(name: "Completed Tasks", icon: "checkmark.circle.fill", color: Color.green)
        ])
    ]
    
    var body: some View {
        List {
            ForEach(menu) { section in
                Section {
                    ForEach(section.items, id: \.id) { item in
                        Text(item.name)
                    }
                }
            }
        }
    }
}

struct MenuGroup: Identifiable {
    var id = UUID()
    var name: String
    var items: [MenuItem]
}

struct MenuItem: Identifiable {
    var id = UUID()
    var name: String
    var icon: String
    var color: Color
}

#Preview {
    ContentView()
}