diff --git a/awx/api/serializers.py b/awx/api/serializers.py
index 3ba2488a5b..f91ebad8f5 100644
--- a/awx/api/serializers.py
+++ b/awx/api/serializers.py
@@ -724,6 +724,19 @@ class UnifiedJobTemplateSerializer(BaseSerializer):
         else:
             return super(UnifiedJobTemplateSerializer, self).to_representation(obj)
 
+    def get_summary_fields(self, obj):
+        summary_fields = super().get_summary_fields(obj)
+
+        if self.is_detail_view:
+            resolved_ee = obj.resolve_execution_environment()
+            summary_fields['resolved_environment'] = {
+                field: getattr(resolved_ee, field, None)
+                for field in SUMMARIZABLE_FK_FIELDS['execution_environment']
+                if getattr(resolved_ee, field, None) is not None
+            }
+
+        return summary_fields
+
 
 class UnifiedJobSerializer(BaseSerializer):
     show_capabilities = ['start', 'delete']
diff --git a/awx/main/models/mixins.py b/awx/main/models/mixins.py
index 760cce4e47..0f9d9154e1 100644
--- a/awx/main/models/mixins.py
+++ b/awx/main/models/mixins.py
@@ -477,11 +477,11 @@ class ExecutionEnvironmentMixin(models.Model):
             if wf_template.execution_environment is not None:
                 return wf_template.execution_environment
             wf_node = getattr(wf_node.workflow_job, 'unified_job_node', None)
-        if getattr(self, 'project', None) and self.project.default_environment is not None:
+        if getattr(self, 'project_id', None) and self.project.default_environment is not None:
             return self.project.default_environment
-        if getattr(self, 'organization', None) and self.organization.default_environment is not None:
+        if getattr(self, 'organization_id', None) and self.organization.default_environment is not None:
             return self.organization.default_environment
-        if getattr(self, 'inventory', None) and self.inventory.organization is not None:
+        if getattr(self, 'inventory_id', None) and self.inventory.organization is not None:
             if self.inventory.organization.default_environment is not None:
                 return self.inventory.organization.default_environment