First, define a used defined table type to use:

CREATE TYPE names as TABLE
(
    FirstName varchar(10),
    LastName varchar(10)
)
GO

Create the stored procedure:

CREATE PROCEDURE prInsertNames
(
    @Names dbo.Names READONLY -- Note: You must specify the READONLY
)
AS

INSERT INTO dbo.TblNames (FirstName, LastName)
SELECT FirstName, LastName
FROM @Names 
GO

Executing the stored procedure:

DECLARE @names dbo.Names
INSERT INTO @Names VALUES
('Zohar', 'Peled'),
('First', 'Last')

EXEC dbo.prInsertNames @Names