Controller doing all the work 

def create
  # ...

  respond_to do |format|
    if @entry.save
      format.turbo_stream do
        render turbo_stream: turbo_stream.before(
          "id-of-html-element",
          partial: "entries/entry",
          locals: { entry: @entry })
      end
      format.html { redirect_to @entry, notice: "Successfully created." }
      format.json { render :show, status: :created, location: @entry }
    else
      format.html { render :new, status: :unprocessable_entity }
      format.json { render json: @entry.errors, status: :unprocessable_entity }
    end
  end
end

Controller action doing the work

def create
  # ...

  respond_to do |format|
    if @entry.save
      format.turbo_stream
      format.html { redirect_to @entry, notice: "Successfully created." }
      format.json { render :show, status: :created, location: @entry }
    else
      format.html { render :new, status: :unprocessable_entity }
      format.json { render json: @entry.errors, status: :unprocessable_entity }
    end
  end
end

<%# app/views/entries/create.turbo_stream.erb %>
<%= turbo_stream.before "id-of-html-element" do %>
  <%= render partial: @entry.to_partial_path, locals: { entry: @entry } %>
<% end %>

<%# app/views/entries/create.turbo_stream.erb %>
<%= turbo_stream.before "id-of-html-element" do %>
  <%= render @entry %>
<% end %>

Rails translates @entry to @entry.to_partial_path which equals to "entries/entry" in this case