diff --git a/src/textual/app.py b/src/textual/app.py
index 40cc145e1..a1bdfae04 100644
--- a/src/textual/app.py
+++ b/src/textual/app.py
@@ -700,6 +700,9 @@ class App(Generic[ReturnType], DOMNode):
         """Mount widgets. Widgets specified as positional args, or keywords args. If supplied
         as keyword args they will be assigned an id of the key.
 
+        Returns:
+            AwaitMount: An awaitable object that waits for widgets to be mounted.
+
         """
         mounted_widgets = self._register(self.screen, *anon_widgets, **widgets)
         return AwaitMount(mounted_widgets)
@@ -1133,7 +1136,11 @@ class App(Generic[ReturnType], DOMNode):
         """Register widget(s) so they may receive events.
 
         Args:
-            parent (Widget): Parent Widget
+            parent (Widget): Parent Widget.
+
+        Returns:
+            list[Widget]: List of modified widgets.
+
         """
         if not anon_widgets and not widgets:
             return []
diff --git a/src/textual/widget.py b/src/textual/widget.py
index 31f6209f7..605157668 100644
--- a/src/textual/widget.py
+++ b/src/textual/widget.py
@@ -360,7 +360,7 @@ class Widget(DOMNode):
             ```
 
         Returns:
-            AwaitMount: An awaitable that waits for widgets to be mounted.
+            AwaitMount: An awaitable object that waits for widgets to be mounted.
 
         """
         mounted_widgets = self.app._register(self, *anon_widgets, **widgets)